Comment by gaiagraphia

Provides many opportunities for cheaper and more scalable methods of terrorism.

Don't need to actually get explosives on board, just a bluetooth device. Manage to get 10 planes at once, and you've got a nice bit of chaos on your hands.

Wonder how easy it'd be to reverse pickpocket some fitbits into jackets left laying around before you catch your flight to a 'non-aligned country'.

Could cause lots of havoc with pre-planted speakers, too. Setting off random sirens at maximum volume, telling people to evacuate, etc. I wonder what the security solution would be if people started causing terror via text and sound.