.....Bruce Riedel, a former CIA officer who is now a senior fellow at the Washington-based Brookings Institution, says Wednesday's revelations did not change his opinion that Israel was behind the assassination.......Mr Riedel says it would have been highly unusual for the hit squad to have visited Dubai using the stolen identities last year just for reconnaissance, as the police claim, and that this may have been an attempt to eliminate the Hamas leader that had failed. He also doubted that all of the suspects had been in the Gulf just for one mission."What the Dubai authorities are uncovering now is...