OSLO, Norway - Former U.N. chief weapons inspector Hans Blix said Monday that Iran is a least five years away from developing a nuclear bomb, leaving time to peacefully negotiate a settlement. Blix, attending an energy conference in western Norway, said he doubted the U.S. would resort to invading Iran. "But there is a chance that the U.S. will use bombs or missiles against several sites in Iran," he was quoted by Norwegian news agency NTB as saying. "Then, the reactions would be strong, and would contribute to increased terrorism." Blix said there is still time for dialogue over Iran's...