If you are reading these forums because of an innate fear of government and maybe the Trilateral Commission I urge you to question the tinfoil hat theory that Airstreams prevent anybody from reading your mind. Please see 'New Science' at http://people.csail.mit.edu/rahimi/helmet/
and take other precautions!
On further thought I would take this study with a bit of skepticism. My aluminum Safari hat prevents me from participating with other Airstream owners telekinetically, thus the need for these forums! Only question is -- shiny side in or out?