Hooker’s second greatest reform was the creation of the “Bureau of Military Information.” It became the first all-source intelligence organization in use by the U.S. Army.  The bureau, led by Colonel George H. Sharpe, organized and analyzed combat intelligence from cavalry, spies and scouts, reconnaissance balloons, intercepted signals, prisoner interrogations, and civilian debriefings.                 (Colonel Sharpe is on the left of this Library of Congress photograph.)