UN: Russia a threat to international unity on Iran

Unexpected Russian opposition to key parts of a US-backed Security Council draft resolution is threatening international unity on how to deal with Teheran's nuclear defiance, UN diplomats said Saturday. Particularly vexing to the United States and its allies is Moscow's refusal to endorse language that would demand Teheran freeze uranium enrichment or face potential sanctions. Russia had signaled that it was ready to support a tougher line.