File-This undated file photo shows the Pentagon, headquarters of the U.S. Department of Defense, with the
Washington Monument in background and a large parking lot in foreground, in Arlington, Va. The Pentagon
is proposing to end an arrangement in which a single military officer leads two of the nation’s main
cybersecurity organizations, a move that a leading Democrat said Saturday, Dec. 19, 2020, makes him
“profoundly concerned” amid a large-scale cyberattack on U.S. government computer systems.