FBI says it thwarted Islamic State-inspired attacks on July 4

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FBI, Homeland Security: July Fourth Terror Attacks Possible

U.S. authorities foiled attacks planned around the Fourth of July, arresting more than 10 people in the month before the holiday who were inspired by Islamic State online recruitment, FBI Director James Comey said on Thursday.

"I do believe our work disrupted efforts to kill people likely in connection with July 4th," Comey told reporters at the headquarters of the Federal Bureau of Investigation. He did not detail the number of plots uncovered or their targets.

Separately, a national security source said multiple overseas plots by Islamic State sympathizers had also been halted in recent days.

The FBI and the U.S. Department of Homeland Security had warned local law enforcement to be on alert for attacks around the July 4 holiday celebrating the 1776 U.S. Declaration of Independence. No such attacks occurred.

Authorities' concern heightened around the holiday as Islamic State leaders called for followers to do what they could wherever they could to carry out violence on behalf of the militant group.

Comey described the tactic as "crowd sourcing terrorism" and said the FBI had accepted the heightened state as the "new normal."


FBI Says Arrested 10 in July 4 Plots Inspired by Islamic State

Some of those arrested were communicating with Islamic State via encrypted data, a second U.S. security source said.

The FBI has pressured tech companies to remove encryption that gives users privacy protections that cannot be broken by law enforcement.

Comey estimated that dozens of people influenced by Islamic State have "gone dark" and disappeared from the FBI's watch because of encrypted data.

The United States is engaged in a military campaign with allies in the Middle East to fight Islamic State militants who have taken over parts of Iraq and Syria and created cells in other countries racked by conflict in the region.


See photos from the attacks in Tunisia, France and Kuwait:

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Friday 6/26 ISIS-related attacks (Kuwait, France, Tunisia)
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FBI says it thwarted Islamic State-inspired attacks on July 4
Police officers investigate at a plant where an attack took place, Friday, June 26, 2015 in Saint-Quentin-Fallavier, southeast of Lyon, France. A man with suspected ties to French Islamic radicals rammed a car Friday into an American gas factory in southeastern France, triggering an explosion that injured two people, officials said. The severed head of a local businessman was left hanging at the factory's entrance, along with banners with Arabic inscriptions, they said. (AP Photo/Laurent Cipriani)
French security and emergency services gather at the entrance of the Air Products company in Saint-Quentin-Fallavier, near Lyon, central eastern France, on June 26, 2015. An attacker carrying an Islamist flag killed one person and injured several others at a gas factory in eastern France, according to a legal source. The suspected attacker entered the factory and set off several small explosive devices, the source said. A decapitated body was found nearby the factory, another source said. AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)
French police and firefighters gather at the entrance of the Air Products company in Saint-Quentin-Fallavier, near Lyon, central eastern France, on June 26, 2015. An attacker carrying an Islamist flag killed one person and injured several others at a gas factory in eastern France, according to a legal source. The suspected attacker entered the factory and set off several small explosive devices, the source said. A decapitated body was found nearby the factory, another source said. AFP PHOTO/PHILIPPE DESMAZES (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)
French police and firefighters secure the entrance of the Air Products company in Saint-Quentin-Fallavier, near Lyon, eastern France, on June 26, 2015. An attacker carrying an Islamist flag killed one person and injured several others at a gas factory in eastern France, according to a legal source. The suspected attacker entered the factory and set off several small explosive devices, the source said. A decapitated body was found nearby the factory, another source said. AFP PHOTO/PHILIPPE DESMAZE (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)
Investigating police officers work outside the plant where an attack took place, Friday, June 26, 2015 in Saint-Quentin-Fallavier, southeast of Lyon, France. French authorities say one person has been beheaded in an attack and explosion at a gas factory in the southeastern part of the country. Officials say banners with Arabic writing were found near the body. Authorities have opened a terrorism investigation. (AP Photo/Laurent Cipriani)
Police officer block the area where an attack took place, Friday, June 26, 2015 in Saint-Quentin-Fallavier, southeast of Lyon, France. An attacker with suspected ties to French Islamic radicals rammed a car into a gas factory Friday in southeastern France, and a severed head was staked on a post at the entrance, officials said. France immediately opened a terrorism investigation. (AP Photo/Laurent Cipriani)
Riot police officers block the area where an attack took place, Friday, June 26, 2015 in Saint-Quentin-Fallavier, southeast of Lyon, France. A man with suspected ties to French Islamic radicals rammed a car Friday into an American gas factory in southeastern France, triggering an explosion that injured two people, officials said. The severed head of a local businessman was left hanging at the factory's entrance, along with banners with Arabic inscriptions, they said. (AP Photo/Laurent Cipriani)
Police officers guard the road leading to a plant where an attack took place in Saint-Quentin-Fallavier, southeast of Lyon, France, Friday, June 26, 2015. A man with suspected ties to French Islamic radicals rammed a car Friday into an American gas factory in southeastern France, triggering an explosion that caused injuries, officials said. The severed head of a local businessman was left hanging at the factory's entrance, along with banners with Arabic inscriptions, they said. (AP Photo/Michel Euler)
French police secure the entrance of the Air Products company in Saint-Quentin-Fallavier, near Lyon, central eastern France, on June 26, 2015. An attacker carrying an Islamist flag killed one person and injured several others at a gas factory in eastern France, according to a legal source. The suspected attacker entered the factory and set off several small explosive devices, the source said. A decapitated body was found nearby the factory, another source said. AFP PHOTO/PHILIPPE DESMAZE (Photo credit should read PHILIPPE DESMAZES/AFP/Getty Images)
Kuwaiti security personnel and medical staff carry a man on a stretcher at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. The Islamic State group-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack, which it claimed was spreading Shiite teachings among Sunni Muslims. (Photo credit STR/AFP/Getty Images)
Kuwaiti men react over a body at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. The Islamic State group-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack, which it claimed was spreading Shiite teachings among Sunni Muslims. (Photo credit STR/AFP/Getty Images)
Worshippers react after a deadly explosion claimed by the Islamic State group during Friday prayers at the Imam Sadiq Mosque in Kuwait City, Friday, June 26, 2015. A Kuwaiti paramedic and a human rights activist say that more than a dozen people have been killed and dozens more have been wounded in an attack on the Shiite mosque. (AP Photo)
Security forces and officials gather at a Shiite mosque after a deadly blast claimed by the Islamic State group that struck worshippers attending Friday prayers in Kuwait City, Friday, June 26, 2015. (AP Photo)
Security forces and officials gather at a Shiite mosque after a deadly blast claimed by the Islamic State group that struck worshippers attending Friday prayers in Kuwait City, Friday, June 26, 2015. (AP Photo)
A wounded man is helped moments after a deadly explosion claimed by the Islamic State group during Friday prayers at the Imam Sadiq Mosque in Kuwait City, Friday, June 26, 2015. A Kuwaiti paramedic and a human rights activist say that more than a dozen people have been killed and dozens more have been wounded in an attack on the Shiite mosque. (AP Photo)
Men react after a deadly blast claimed by the Islamic State group that struck worshippers attending Friday prayers at a Shiite mosque in Kuwait City, Friday, June 26, 2015. Friday's explosion struck the Imam Sadiq Mosque in the neighborhood of al-Sawabir, a residential and shopping district of the capital. (AP Photo)
Security forces work at the site of a deadly blast claimed by the Islamic State group that struck worshippers attending Friday prayers at a Shiite mosque in Kuwait City, Friday, June 26, 2015. Friday's explosion struck the Imam Sadiq Mosque in the neighborhood of al-Sawabir, a residential and shopping district of the capital. (AP Photo)
Men react after a deadly blast claimed by the Islamic State group that struck worshippers attending Friday prayers at a Shiite mosque in Kuwait City, Friday, June 26, 2015. Friday's explosion struck the Imam Sadiq Mosque in the neighborhood of al-Sawabir, a residential and shopping district of the capital. (AP Photo)
Map locates Kuwait City, site of a mosque bombing. (Image via AP)
Kuwaiti emergency personnel pull a man on stretchers past security forces outside the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. The Islamic State group-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack, which it claimed was spreading Shiite teachings among Sunni Muslims. (Photo credit STR/AFP/Getty Images)
A Kuwaiti man with blood-stained clothes and a bandaged head uses a phone at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. The Islamic State group-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack, which it claimed was spreading Shiite teachings among Sunni Muslims. (Photo credit STR/AFP/Getty Images)
Kuwaiti men and a security member inspect the scene outside the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. The Islamic State group-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack, which it claimed was spreading Shiite teachings among Sunni Muslims. (Photo credit Yasser Al-Zayyat, AFP/Getty Images)
A Kuwaiti man with blood-stained clothes reacts as he sits at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque during Friday prayers on June 26, 2015, in Kuwait City. (Photo credit Yasser Al-Zayyat, AFP/Getty Images)
Kuwaiti emergency personnel pull stretchers past security forces outside the Shiite Al-Imam al-Sadeq mosque after it was targeted by a suicide bombing during Friday prayers on June 26, 2015, in Kuwait City. (Photo credit Yasser Al-Zayyat, AFP/Getty Images)
Kuwaiti men react at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque during Friday prayers on June 26, 2015, in Kuwait City. (Photo credit Yasser Al-Zayyat, AFP/Getty Images)
A Kuwaiti man reacts at the site of a suicide bombing that targeted the Shiite Al-Imam al-Sadeq mosque during Friday prayers on June 26, 2015, in Kuwait City. (Photo credit Yasser Al-Zayyat, AFP/Getty Images)
Security measures are taken after an armed attack on a tourist hotel in Sousse, east Tunisia, left at least 27 people dead, including foreigners, and injured six others , on June 26, 2015. (Photo by Stringer/Anadolu Agency/Getty Images)
The bodies of people are seen after an armed attack on a tourist hotel in Sousse, east Tunisia, left at least 27 people dead, including foreigners, and injured six others , on June 26, 2015. (Photo by Stringer/Anadolu Agency/Getty Images)
Wounded people are carried after an armed attack on a tourist hotel in Sousse, east Tunisia, left at least 27 people dead, including foreigners, and injured six others , on June 26, 2015. (Photo by Stringer/Anadolu Agency/Getty Images)
In this screen grab taken from video provided by Tunisia TV1, injured people are treated on a Tunisian beach Friday June 26, 2015. Two gunmen rushed from the beach into a hotel in the Tunisian resort town of Sousse Friday, killing at least 27 people and wounding six others in the latest attack on the North African country's key tourism industry, the Interior Ministry said. (Tunisia TV1 via AP)
In this screen grab taken from video provided by Tunisia TV1, injured people are treated on a Tunisian beach Friday June 26, 2015. Two gunmen rushed from the beach into a hotel in the Tunisian resort town of Sousse Friday, killing at least 27 people and wounding six others in the latest attack on the North African country's key tourism industry, the Interior Ministry said. (Tunisia TV1 via AP 
In this screen grab taken from video provided by Tunisia TV1, injured people are treated on a Tunisian beach Friday June 26, 2015. Two gunmen rushed from the beach into a hotel in the Tunisian resort town of Sousse Friday, killing at least 27 people and wounding six others in the latest attack on the North African country's key tourism industry, the Interior Ministry said. (Tunisia TV1 via AP) 
In this screen grab taken from video provided by Tunisia TV1, injured people are treated on a Tunisian beach Friday June 26, 2015. Two gunmen rushed from the beach into a hotel in the Tunisian resort town of Sousse Friday, killing at least 27 people and wounding six others in the latest attack on the North African country's key tourism industry, the Interior Ministry said. (Tunisia TV1 via AP)
GRAPHIC CONTENT Covered bodies of victims of a mass-shooting are seen in the resort town of Sousse, a popular tourist destination 140 kilometres (90 miles) south of the Tunisian capital, following the attack on June 26, 2015. At least 27 people, including foreigners, were killed in a mass shooting at a Tunisian beach resort packed with holidaymakers, in the North African country's worst attack in recent history. AFP PHOTO / FETHI BELAID (Photo credit should read FETHI BELAID/AFP/Getty Images)
Armed forces patrol the area near a Tunisian beach, in Sousse, Friday June 26, 2015. A young man unfurled an umbrella and pulled out a Kalashnikov, opening fire on European sunbathers in an attack that killed at least 28 people at a Tunisian beach resort — one of three deadly attacks from Europe to the Middle East on Friday that followed a call to violence by Islamic State extremists. (Jawhara FM via AP)
An injured person is treated on a Tunisian beach, in Sousse, Friday June 26, 2015. A young man unfurled an umbrella and pulled out a Kalashnikov, opening fire on European sunbathers in an attack that killed at least 28 people at a Tunisian beach resort — one of three deadly attacks from Europe to the Middle East on Friday that followed a call to violence by Islamic State extremists. (Jawhara FM via AP)
Tourists console each other following a shooting attack in the resort town of Sousse, a popular tourist destination 140 kilometres (90 miles) south of the Tunisian capital, on June 26, 2015. At least 27 people, including foreigners, were killed in a mass shooting at a Tunisian beach resort packed with holidaymakers, in the North African country's worst attack in recent history. AFP PHOTO / FETHI BELAID (Photo credit should read FETHI BELAID/AFP/Getty Images)
Injured people are treated on a Tunisian beach, in Sousse, Friday June 26, 2015. A young man unfurled an umbrella and pulled out a Kalashnikov, opening fire on European sunbathers in an attack that killed at least 28 people at a Tunisian beach resort — one of three deadly attacks from Europe to the Middle East on Friday that followed a call to violence by Islamic State extremists. (Jawhara FM via AP)
A body is covered near a Tunisian beach, in Sousse, Friday June 26, 2015. A young man unfurled an umbrella and pulled out a Kalashnikov, opening fire on European sunbathers in an attack that killed at least 28 people at a Tunisian beach resort — one of three deadly attacks from Europe to the Middle East on Friday that followed a call to violence by Islamic State extremists. (Jawhara FM via AP)
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