This is the cbs evening news. Mason good evening. Im Anthony Mason. President trump drew a line today for north korean dictator kim jongun and warned what would happen if he crosses it. North korea best not make any more threats to the united states. They will be met with fire and fury, like the world has never seen. Mason the president s warning follows threats of retaliation for u. S. Sanctions and reports today that the north has passed a key milestone on the road to becoming a nuclear power. U. S. Intelligence believes the north produced a Nuclear Warhead that can fit inside its missiles. We begin tonight with National Security correspondent david martin. Reporter if the assessment by the Pentagons Defense Intelligence Agency is accurate, north korea has crossed a crucial, but not the final threshold in developing a Nuclear Weapon that can threaten the american homeland. Shortly after word of the new estimate leaked, President Trump warned kim jongun in the starkest terms possible.