Jet's black boxes found, as cause of deadly DC crash investigated
Investigators have recovered the flight data recorders, also known as black boxes, from an American Airlines jet which collided with a US army helicopter on Wednesday near Washington DC
The National Transportation Safety Board said it has "a lot of information but... need some time to verify that" and a preliminary report will be issued in 30 days
Details about some of the 67 people who died in the crash are now beginning to emerge
President Donald Trump offered his condolences - saying on Thursday "our hearts are shattered" by the tragedy
Trump blamed diversity rules under his predecessors, saying he believes people hired for air traffic control roles were not always qualified - but offered no evidence for this
In an audio clip, air traffic controllers can be heard asking the helicopter's crew if they can see the plane
Jet's black boxes found, as cause of deadly DC crash investigated