A new layer of security could be initiated with the idea of moving security checkpoints outside of the airports.
Istanbul had placed armed officers at the airports entrance which disrupted the three bombers plans, forcing them to split up. It's believed the death toll would have been much higher had the external forces not been present.
The concept of moving the checkpoints outside to the curb or inspecting cars as they enter the airports could prevent terrorists from making it inside.
Aviation security expert Denny Kelly says it would be expensive and inconvenient. "People are going to be late for their flights and miss their flights."
He also went on to say the outside system won't work "because if someone is willing to give up their life, you're not gonna stop them by putting a mirror under their car."
Kelly says the idea is unlikely to every become a reality.
Related: Also see some of the strange items the TSA has confiscated:
TSA Confiscated Objects - Instagram
TSA Confiscated Objects - Instagram
#TSAGoodCatch - This comb dagger was discovered in a carry-on bag at the Lihue Airport (LIH) in Hawaii. Knives are always prohibited in carry-on bags no matter the size. Concealed knives can lead to fines and arrest.
#TSAGoodCatch - This cane sword was detected recently in a passenger’s carry-on property at Las Vegas (LAS). All knives and swords are prohibited in carry-on bags, and concealed items can lead to arrest and fines.
#TSAGoodCatch - This push dagger was discovered in a package of gum at the Detroit Metropolitan Airport (DTW). Knives are always prohibited from carry-on bags, but concealed knives can lead to fines and arrest.
#TSAGoodCatch - Another #Batarang was discovered in a carry-on bag. This time it was at the Chicago O'Hare International Airport (ORD). Next time, leave your batarang in the bat cave, #Batman!
#TSAGoodCatch - A throwing star was discovered in a carved-out compartment in a wooden cellphone case at Ontario (ONT) in a carry-on bag. Concealed items can lead to fines and arrest.
#TSAGoodCatch - This #bejeweled lipstick stun gun was discovered in a carry-on bag at the Hartsfield–Jackson Atlanta International Airport (ATL). All stun guns are prohibited from being packed in carry-on bags or carried on your person.
#TSAGoodCatch - These neon green faux blood adorned machetes and throwing knives were discovered in a carry-on bag at the Portland International Airport (PDX). While machetes and throwing knives are prohibited in carry-on bags, they may be packed in checked baggage that goes in the luggage hold under the plane.
#TBT April, 2014 - An 8.5” knife was discovered inside an enchilada at the Sonoma County Airport (STS). While this was a great catch, the passenger’s intent was delicious, not malicious, and she was cleared for travel. It’s always important to double check your bags and enchiladas.
#TBT - May 2014 - This mallet was discovered in a traveler’s carry-on property at the Burlington International Airport (BTV). Items such as sledgehammers and mallets are considered bludgeons and are prohibited from being packed in carry-on bags. Checked baggage is fine.
#TSAGoodCatch - This ice pick concealed inside of a cane was discovered in a traveler’s carry-on property at Newark (EWR). Concealed weapons can lead to fines and arrest.
#TSAGoodCatch - These nunchucks were discovered in a traveler’s carry-on bag at the Newark Liberty International Airport (EWR). Nunchucks are prohibited from being transported in carry-on bags, but may be packed in checked bags as long as they’re not illegal where you are traveling.
#TSATravelTips - Marijuana was discovered concealed in a jar of peanut butter in a checked bag at San Jose (SJC). As we’ve said before, we’re not looking for illegal narcotics, but we have to report them to law enforcement when discovered. #TSAGoodCatch
#TSAGoodCatch - This key knife was discovered at the Erie International Airport (ERI). All knives are prohibited from carry-on bags. Concealed knives can lead to arrests and fines.
#TBT December 2013 - This loaded 9mm was discovered in a shoe inside a carry-on bag at the Grand Junction Regional Airport (GJT). This is one of the 1,813 firearms that were discovered in carry-on bags in 2013. 1,477 of those were loaded. While firearms are prohibited in carry-on bags, you can pack them in your checked baggage, as long as you meet the packing guidelines: bit.ly/travelingwithfirearms.
#TBT August 2011 -- Two birds were discovered during a pat-down that was being administered due to bulky clothing at the Los Angeles International Airport (LAX). They were wrapped in socks and taped to the leg and chest of a woman who was traveling to China. @USFWS officers arrested the woman on suspicion of smuggling and exporting an endangered species out of the United States. #TSAGoodCatch