Simply Left Behind: ATTENTION ALL 9-11 CRACKPOT CONSPIRACY THEORISTS AND FREEPERS!: The Non-Rapturist's Guide To The Galaxy "ATTENTION ALL 9-11 CRACKPOT CONSPIRACY THEORISTS AND FREEPERS! Your tin foil helmets will NOT protect you! It has long been suspected that the government has been using satellites to read and control the minds of certain citizens. The use of aluminum helmets has been a common guerrilla tactic against the government's invasive tactics. Surprisingly, these helmets can in fact help the government spy on citizens by amplifying certain key frequency ranges reserved for government use. In addition, none of the three helmets we analyzed provided significant attenuation to most frequency bands. " Maybe that's why the troofer quality on USMB has been in the tank lately.