With typical provocative arrogance, Iranian president Mahmoud Ahmadinejad has said in a letter addressed to the US president that Barack Obama’s power and success depends on Iran. Disclosing this Friday, April 16, the Iranian leader promised to publish the letter soon. “Obama should start cooperating with us in practice,” he said. “We don’t need you to do anything for us to come out of isolation, rather we want to help you come out of isolation.”