See here.

I suppose one could always try. Take a cheap steel you won't mind losing. Or as others have pointed
out, you really don't need one with you on the plane, so put it in checked baggage.

I put cheaper copies of my EDC in my baggage, near the edge of the suit case, in the fold of a pair
of pants. Someone in a hurry hopefully won't even feel anything worth stealing. If they're using the
x ray stuff to scout for items, and they notice, and they take the time to find it, they can have it. :-)

Best bet is to ship anything you really want to have ahead of you to your destination. I even ship
my laptop.