Luckily highly trained terrorist have never heard of tin foil so wont think to shield their bracelet. If this was ever used I would give it a year before someo

Luckily highly trained terrorist have never heard of tin foil so wont think to shield their bracelet. If this was ever used I would give it a year before someone 'committing' air rage is subdued with this. "I thought he was a terrorist, he was shouting and looked at me funny!" I already refuse to fly to America because of all the stupid bio scans I don't want to subject myself to.