Tehran, Iran (CNN) -- Iran's release this week of American hiker Sarah Shourd was a unilateral gesture made without any promise of a quid pro quo, but that doesn't mean Iranian officials wouldn't appreciate a similar act from the United States, Iran's President Mahmoud Ahmadinejad told state-run television Friday. "We have no expectations," he told IRINN TV. "But naturally, morally, the expectation would be that the U.S. government would take a step to release a number of Iranians that they took from other countries." Ahmadinejad said the United States is holding a number of Iranians. "The expectation is that you...