The Bush administration has begun suggesting again that Iran is working to develop nuclear weapons and that it is determined to acquire a nuclear bomb. On Wednesday Secretary of State Colin Powell said, “I have seen some information that would suggest that they have been actively working on delivery systems. . . . You don’t have a weapon until you put it in something that can deliver a weapon.” Powell’s comments came just days after the International Atomic Energy Agency said it had not seen any information that Iran had conducted weapons-related work. Also this week Iran agreed with Britain, France and Germany to suspend its uranium enrichment program.