A congressional hearing heard about a sharp increase in near-collisions between drones and planes.
The former deputy secretary of defense is named by the president as his nominee to lead the Pentagon.
White House aides have hinted that Obama had lost confidence in Hagel’s ability to oversee the war against the Islamic State and U.S. military operations in Iraq and Syria.
A new Pentagon report could fuel debate over whether the military is prosecuting sex crimes effectively .
The former No. 2 at the Pentagon is little known outside Washington but is renowned for his intellect.
25 incidents have been reported by pilots since June alone, showing an increasingly dangerous situation.
Since June 1, pilots of passenger airlines and other aircraft have reported 25 near-collisions with small drones across the United States.
After less than two years, he plans to leave the job in what could portend a broader shake-up by the president.
The FAA is investigating after drones have been flown over at least a half-dozen football games this fall.
Lt. Col. Isaac Zida attended counterterrorism and military intelligence training courses.