DoS attack reveals (yet another) crack in net's core (http://www.theregister.co.uk/2008/10/01/fundamental_net_vuln/)
Self-trashing TCP exploit
interesting article sounds like another flaw they are looking to find a fix for.
Quote:
"Security experts say they have discovered a flaw in a core internet protocol that can be exploited to disrupt just about any device with a broadband connection, a finding that could have profound consequences for millions of people who depend on websites, mail servers, and network infrastructure."