FAA ignored warnings before DCA crash, federal investigators say The Washington Post
Helicopter just barely made contact with jet’s wing in catastrophic DC midair collision, NTSB hearing reveals CNN
Deadly midair collision near D.C. followed years of ignored warnings about traffic, investigators say NBC News
$400 GPS device could have prevented deadly midair crash near DC: NTSB chair ABC News
‘This was preventable’: NTSB chair scorches FAA in probe of fatal DC crash Politico
FAA ignored warnings before DCA crash, federal investigators say – The Washington Post
