Investigators searching for wreckage from last week’s deadly midair collision between a US military Black Hawk helicopter and an American Airlines plane near Washington, DC, conducted an overnight ...

Ten days after a passenger jet and a Black Hawk helicopter collided over the Potomac River near ... a green laser to scan the river floor and help investigators map out its layout.

conducted an overnight scan of the Potomac River where the aircraft fell using advanced imaging technology to map the riverbed and locate debris. The scan was performed by the National Oceanic and ...