Call for Navy security review
US politicians are calling for a review into how the suspected gunman in Monday's rampage at the Washington Navy Yard received and maintained a security clearance, despite a history of violent episodes.
US Navy orders review of security clearances
The US Navy has ordered three new reviews of its security clearances to "better understand the circumstances" under which a gunman killed 12 people at the Washington Navy Yard on Monday.
-
Security clearance questions over Washington gunman
Despite having serious mental health problems and previous incidents with firearms, Aaron Alexis held security clearance for the Navy base.
-
FBI probes fatal shooting at Washington Navy shipyard
At least 13 people, including the suspected gunman, have been killed in a shooting at a Navy base in Washington DC.