A team of US and Russian technical experts want to put the kibosh on US plans for putting a missile defense system in Poland and the Czech Republic.

There are two angles to this story: first, it's an important step in rebuilding relations with Russia -- or pushing the famous "reset" button -- which is a big step in itself. Second, it's part of a judicious and careful Obama opening to Iran, downgrading the alleged threat from that country, and boosting chances that the opening might succeed.