good day, everyone, i m andrea mitchell in washington where the biden administration is bolstering support for close ally south korea in response of course to kim jong-un s nuclear threat, a growing threat for the first time in four decades, u.s. nuclear armed submarines will dock in south korea for what national security officials are calling official visits, but no american nukes will be deployed onto the peninsula as part of the new agreement. and the u.s. has agreed that south korea will have a role in any u.s. use of nuclear weapons in a conflict with the north joining me now, nbc white house correspondent and today co-host, kristen welker. also jen psaki and victor cha, senior vice president for asia and korea chair at the center for international studies. the biden strategy on north korea is nothing more than love letters from president trump and kim jong-un. that s absolutely right what we re seeing today is effectively this show of force, pomp and pageantry that
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