macmouse writes "The San Francisco Chronicle has an article about Cisco and Anti-Virus companies working together to block viruses at the ISP (Router) level. It sounds like they will be using traffic shaping to block malicious traffic. Looking at it in an negative light however, it might mean that your required to have anti-virus software installed in order to use the internet. This can be a *big* problem for *nix/mac users which normally don't need or use AV software. Not to mention, being forced to purchase software from 'company x,y or z' in order to get online, regardless of platform. Hopefully, this is not going to happen."