Bush administration officials said yesterday that a military strike against Osama bin Laden and his supporters in Afghanistan is not imminent, citing the need to gain better intelligence about their whereabouts. Following a NATO briefing in Brussels, Deputy Defense Secretary Paul Wolfowitz told reporters, “I think it can’t be stressed enough that everybody who’s waiting for military action needs to rethink this thing.” Defense Secretary Donald Rumsfeld made similar remarks Tuesday at a briefing on Capitol Hill.