N. Korea says 'new missile' can carry nuclear warhead

North Korea Monday celebrated the launch of what appeared to be its longest-range ballistic missile yet tested in a bid to bring the US mainland within reach, saying it was capable of carrying a "heavy nuclear warhead".Leader Kim Jong-Un personally oversaw the test on Sunday, the official Korea Central News Agency (KCNA) said, and pictures by state media showed him gazing at the missile in a hangar before the launch.The isolated North is under multiple sets of United Nations sanctions over its n