cnn's orrin lieberman is in moscow.more do we know about the missile that moscow is threatening to build? >> well, it's worth pointing out that before russian president vladimir put be talked about this missile, he said there should be no arms race and there will be no arms race. describing his decision, russia's decision, to withdraw from the inf, the arms control treaty, as a tit-for-tat with the u.s. seals the russians were threatening to suspend the treaty and this was their response. saying if the u.s. isn't going to abide by the treaty, there's no reason for us to do so. shortly after saying there won't be an armed race, putin talked about the missile that will further develop. russia currently has a missile called the calibecaliber. itlimits of treaty. putin said they will develop a ground-based version of the same missile. russia signaling if the treaty's not going to be held up anymore on the u.s. end, we're not going to hold it up and will continue to develop weapons. russia saying if the u.s. is going to do r