In the USA, there is a proposed legislation that at the moment goes under the popular name PROTECT IP that is sort of a follow-up of COICA. You can find the proposal that under the formal name of GRA11400. Among other things the proposal talks about requirement of under some circumstances blocking of resolution of certain domain names registered in registries not based in the US. Today (May 25, 2011) Steve Crocker, David Dagon, Dan Kaminsky, Danny McPherson and Paul Vixie released a report that More