On the American side, the weapon of immediate concern is a new version of the AGM-86B air-launched cruise missile, usually carried by B-52 bombers. Also known as the Long-Range Standoff Weapon (LRSO), it is, like the Iskander-M, expected to be deployed in both nuclear and conventional versions, leaving those on the potential receiving end unsure what might be heading their way. In other words, as with the Iskander-M, the intended target might assume the worst in a crisis, leading to the early use of nuclear weapons. Put another way, such missiles make for twitchy trigger fingers and are likely to lead to a heightened risk of nuclear war, which, once started, might in turn take Washington and Moscow right up the escalatory ladder to a planetary holocaust.