The fight against online piracy just gained a new weapon in the form of the Copyright Alert System (CAS) aka the "six strikes" policy. Starting today, participating ISPs like Verizon, Time Warner Cable, AT&T and Comcast will begin issuing warnings to customers suspected of using illegal peer-to-peer (P2P) file sharing services that violate copyright laws. Initial notifications will be used to educate and direct customers to legal alternative content sources. If the first set of notifications go avoided, the ISP may take fur