As fear spreads across Europe, parents of American college students studying abroad are getting concerned about their kids' safety.
One mother, Shari, has a 21-year-old daughter, Jolie, who's studying in Paris. She has no plans to come home despite the terror attacks.
"I'm terrified," Shari said. "I feel sick to my stomach because my youngest child is studying abroad and, although she is an adult, she is my child."
But her daughter said: "This is something that's been in my life plan for a very long time. I won't ever get to do this again."
There's now a growing movement to teach American kids how to stay safe while living in Europe.
Security expert Steve Kardian showed INSIDE EDITION how to stay safe.
One of his tips: spend as little time at airports as possible.
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"Check your bag at the curb and make sure you print your boarding pass," he said. "Have your passport and IE ready and get on the line directly into security.
"Don't wait on that long lengthy line for people who are checking their luggage. That's where the masses are, that's where bad things might happen."
Another tip: be on the lookout for anything suspicious.
"Watch for people that look out of place," he said.
Another tip: don't travel during rush hour because terrorists target large crowds.
But safety tips don't let Shari sleep any easier.
"I'm counting the days until she comes home," she said.
Click here for more information from the FBI on students' safety and security studying abroad.