Sean M. Flaim in Ars Technica is worried the imminent "six strikes" Copyright Alert System, with major American ISPs sending out "strikes" to users accused of infringing copyrights online, violates antitrust laws. "Eight months ago, content owners and Internet service providers (ISPs) agreed to the Copyright Alert System, a "six-strike" plan to reduce copyright infringement by Internet users. Under the system, ISPs will soon send educational alerts, hijack browsers, and perhaps even slow/temporarily block the Internet service of users accused of online infringement (as identified by content owners)," he writes. "Congress is the body that writes laws affecting interstate commerce. Antitrust, at least in part, offers protection against private companies doing the same. Recent reports indicate that the alert system, until now off to a slow start, will soon start affecting Internet users. Once it does, regulators must look closely to make sure the system lives up to its main promise as an educational tool rather than a system of vigilante justice." Read the full column at Ars Technica.