U.K. Prime Minister David Cameron, praising the Arab Spring of democratic protests across the Middle East and North Africa, said a similar revolt in Iran should not be ruled out. The Iranian regime is one of the most dictatorial and most repressive of all, Cameron told lawmakers in London today. And if the Iranian people start to see that there is a future for a democratic Egypt and a democratic Tunisia and a Libyan people struggling to throw off their hideous leader, then people in Iran who have attempted this before might think, well actually we don t have to go down this autocratic path.