The pilots of a U.S. Army helicopter that collided with a passenger jet over Washington in January would’ve had difficulty spotting the plane while wearing night vision goggles.

John D. Currid, Avi Navon, Iron Age Pits and the Lahav (Tell Halif) Grain Storage Project, Bulletin of the American Schools of Oriental Research, No. 273 (Feb., 1989), pp. 67-78 ...