The United States Armed Forces no longer use the F-14 fighter jet, which can make it a real pain for armies that do, such as the Iranian air force, to repair theirs. Fortunately, there's eBay and Craig Newmark's Internet-based love-in, Craigslist. The U.S. Government Accountability Office reports that F-14 spare parts and troop equipment such as night vision goggles can be found and purchased from both sites. "Many of the sensitive items we purchased could have been used directly against our troops and allies, or reverse engineered to develop counter measures or equivalent technologies," read the GAO report. Another instance when a few buyer ratings could go a long way. (Photo by James Gordon)