NEW : President Bush says he disagrees with ruling but he 'll abide by it . NEW : Court says separately it wo n't rule on case of Iraq citizens convicted in U.S. . Justice Kennedy : U.S. `` will live to regret what the court has done today '' Justice Bush : the Military Commissions Act should `` remain in force , in extraordinary times ''
NEW : President Bush says he disagrees with ruling but he 'll abide by it . NEW : Court says separately it wo n't rule on case of U.S. citizens convicted in Iraq . Justice Scalia : U.S. `` will live to regret what the court has done today '' Justice Kennedy : Constitution should `` remain in force , in extraordinary times ''