Plus, these things MUST have a “go home” function if communication is lost.
Just suppose that the GPS signal is also jammed and the critter doesn’t know where it is much less where “home” is.
A go home function ... must have it - it’s so logical... Here’s a take on Obama’s role in NOT getting the drone back:
http://www.freerepublic.com/focus/f-bloggers/2818540/posts