https://media1.s-nbcnews.com/j/newscms/2019_14/2812206/190405-william-barr-ac-555p_2d2554e1b94852e921ea63c5e84523b5.nbcnews-fp-1200-630.jpg nbcnews.com michael conway: the mueller report won't stay secret forever. how 2019-04-08 Watergate teaches that, the ploy can boomerang both politically and legally... ..…