I'd be more concerned with signal interception. Assume they use current RC tech[1], which is designed to elimiate interference or capture error, but that doesn't mean it's infeasible. That would be a troubling twist.

Suppose a related idea would be that the image captures from airport body scanners could be intercepted. I have not seen any reference to such an action, at all. Anyone have ideas about an attack vector for those?

[1]: http://spektrumrc.com/DSM/Technology/useDSM.aspx