DCA halts flights due to Navy Yard shooting [photos from tarmac]
http://twitter.com/#!/SDSLivesUnited/status/379606354077691905
The Reagan National Airport has halted all outgoing flights due to the shooting at the Washington DC Navy Yard:
https://twitter.com/luisevanegas/status/379608322623565824
https://twitter.com/nelsonbunn/status/379604888004882432
https://twitter.com/scottdstone/status/379605709379629056
https://twitter.com/JordanWhichard/status/379599475050037248
https://twitter.com/SusanPage/status/379603574457892864
https://twitter.com/SVenusTV/status/379597621952008192
https://twitter.com/DMAguirre11/status/379594182689832960
https://twitter.com/Julia_Tanner/status/379602846284791808
It is unclear whether all incoming flights have also been halted, but some people at other airports are reporting lengthy delays:
https://twitter.com/bradjshannon/status/379604919357292544
https://twitter.com/arianash/status/379600134163922944
