[img]http://d.yimg.com/a/p/ap/20100712/capt.1f537f7020dc49f3a03ad65ef2fc0031-1f537f7020dc49f3a03ad65ef2fc0031-0.jpg?x=130&y=97&q=85&sig=ZuF5QIpdWXMok3irYW6ROA--[/img]AP - Undersea robots maneuvered a mile beneath the Gulf on Monday to delicately lower a new, tighter-fitting cap over BP's busted well, a fix the oil giant hopes can finally stop the leak after nearly three months.