WASHINGTON, July 19 -- The U.S. Department of Defense issued the following news: DEPUTY PRESS SECRETARY SABRINA SINGH: Hello. Good afternoon. All right, just a few things here at the top, and then happy to jump in and take your questions. Yesterday, the Secretary of the Navy exonerated 258 Black sailors who were unjustly court martialed in the wake of the devastating explosion at the Port of Chicago Naval Magazine in California, which killed 320 sailors on July 17, 1944. After a thorough revie  more