Robert McDonald defended his work at a contentious hearing on Wednesday.
Mueller, who was held hostage by ISIS, was a constituent of Rep. Paul Gosar (R-Ariz.)
The House bill would allow the Pentagon to provide lethal weapons.
Rep. Michael McCaul says extremism is "spreading like wildfire around the globe."
The proposed legislation limits "enduring offensive ground combat operations."
The request sent by Obama on Wednesday seeks to balance calls from the left and right.
"Tricare's eliminating itself," Sen. Lindsey Graham (R-S.C.) said.
Most of the 2,800 deployed will be back home by April 30.
The decision is a stinging rebuke to critics of the NSA.
Watchdog group had alleged data was "cherry-picked" to hobble aircraft's future.
President "underscored the rising human toll of the fighting," White House says.
The wording is intended to win over congressional Republicans while not losing Democrats.
A blue-ribbon panel is pushing lawmakers to replace the insurance program for troops.
A spokesman said officials want to avoid "overly burdensome constraints."
The documents contain information about the use of drones to kill three Americans.
Sen. Mitch McConnell said Republicans will review Obama's proposal "thoughtfully."
“Yemen has been of strategic importance to the United States," he said.
The Defense Contract Management Agency website is down for "corrective action."
The State Department is urging all Americans to leave Yemen "as soon as possible."
The bill is named after a TSA worker who died during the shooting at LAX airport in 2013.
Telling parents the U.S. won't pay ransoms is "as tough as anything I do," he said.
The Air Force deployed a dozen A-10 "Warthog" attack jets and approximately 300 airmen to Germany...
"It would be pretty safe to say we're stuck," Senate majority leader says.
Obama has taken heat for remarks that the shooting victims weren't personally targeted.