Weapon Steps News Today

This pause to in essence, mine some money out of different hacks that they do. >> reporter: north koreas next weapon steps can include working on a missile launching submarine. commercial satellite imagery has revealed the latest efforts at their shipyard complex. >> thanks to barbara starr. still ahead on "newsroom," is the republicans tax reform plan good or bad for the u.s. middle class? as with all things in washington, it all gentd depend you ask. and plus, another one of president trum...