'Iran with nuclear capability would cause a ME arms race'

The US is worried by Iran's nuclear intentions, not any new weapons systems it has developed, State Department spokesman Philip J. Crowley told MSNBC News on Monday.
"I don't think that any one weapon system is going to tip the balance one way or another," said Crowley. "[But] we've made clear that Iran having a nuclear capability would set off an arms race within the region." He added, "We want to do everything we can to forestall that."