lipos in an airport/plane

[dirt101]

I'm flying out tomorow and I really want to take my CRT with me but I was packing it up and I couldnt help but notice how much a 3s lipo looks like a bomb. it a block with wires coming off of it and I was wondering how do lipos fly at the airport and on the plane? is anyone going to give me trouble? should I cary them or check them?

thanks guys and i need to know asap.