Comment: Re:Don't worry (Score 4, Informative) 294
I hope these things are at least carrying transponders so they even make a blip on the radar at all.
They'd still show up on radar without a transponder and it would make no sense at all to not have a $200 transponder on $200,000 drone. Without a transponder ATC just wouldn't have any altitude data (if turning off your transponder was all it took to hide from radar, radar would be useless in a war situation where the enemy is trying to hide - obviously not the case - and there would be no need for stealth aircraft). Aircraft are required have to be carrying an altitude reporting transponder to enter most controlled airspace for safety reasons. Aircraft are required to contact ATC prior to entering, and/or stay in continuous contact with ATC also for safety reasons.
The FAA isn't stupid when it comes to safety (you might even say they're borderline paranoid). They won't give arbitrary exceptions to safety-related regulations.