From left, Sen. Jack Reed, D-R.I., Senate Armed Services Committee Chairman Sen. Carl Levin, D-Mich., and the committee’s ranking member, Sen. James Inhofe, R-Okla., listen as Army Chief of Staff Gen Raymond Odierno, lower left, and Army Secretary John M. McHugh, update the committee about the deadly shooting rampage by a soldier yesterday at Fort Hood in Texas, Thursday, April 3, 2014, on Capitol Hill in Washington. An Iraq War veteran being treated for mental illness was the gunman who opened fire at Fort Hood, killing three people and wounding 16 others before committing suicide, in an attack on the same Texas military base where more than a dozen people were slain in 2009. (AP Photo/J. Scott Applewhite)