In February, federal agents raided the home of a man in Buffalo (throwing him down the stairs in the process) and arrested him for possession of child pornography. It took three days for the authorities to realize they had the wrong guy: The suspect's neighbor had accessed his unprotected wireless network and used it to share child porn. Something similar happened to a man in Florida last year, and to another man in Syracuse, N.Y. in 2009 (upstate New York agents may want to rethink their process); the point is, password-protect your wireless network, because your neighbor is probably a pedophile. [AP]