Old news but being reiterated today; North Korea has between five and eight nuclear warheads. This is according to Daniel Pinkston, of the International Crisis Group, who quotes un-named agencies (but probably the US). The missiles can be loaded onto Rodong missiles capable of reaching Japan. If true, Japan may go nuclear, too.
Is this one of the international crises Biden was referring to?
One query: the first link in this post is from 2006, and quotes US sources. The second link quotes un-named sources. Anything to declare, President Obama?