Rice says world must put a stop to Iran's nuclear ambitions
WASHINGTON -- With Iran stepping up its nuclear program, a top White House aide said Sunday the world finally is "worried and suspicious" over the Iranians' intentions and is determined not to let Tehran produce a nuclear weapon. National security adviser Condoleezza Rice also said the Bush administration sees a new international willingness to act against Iran's nuclear program. She credited the changed attitude to the Americans' insistence that Iran's effort put the world in peril.

