The Department of Defense banned troops from both those sites and other social sharing networks; the local government of Toronto has made Facebook off-limits for city workers. The Pentagon is so not Tom's friend.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.