Russia to move toward revoking ratification of nuclear test ban treaty: speaker

By Guy Faulconbridge MOSCOW (Reuters) -Russia on Friday indicated it was moving swiftly towards revoking ratification for the Comprehensive Nuclear Test Ban Treaty after President Vladimir Putin held out the possibility of resuming nuclear testing. A resumption in nuclear tests by Russia, the United States or both would be profoundly destabilising at a time when tensions between the two countries are greater than at any time since the 1962 Cuban Missile Crisis. Putin on Thursday said Russia's nuclear doctrine did not need updating but that he was not yet ready to say whether or not Russia need...