Dusk is the time of least visibility to the eye and to night-vision sniper goggles, they said.
And night-vision photography would never have been deemed sexy.
The U.S. government has also provided Humvees and night-vision goggles as well as arms and ammunition to the Yemeni military.
Dozens of performances were submitted, ranging from tangos to Lindy Hops to night-vision hula-hooping.
Another member of the plot took care of the ammo along with black uniforms, night-vision equipment, and body armor.
The administration has provided Yemeni special-ops with gear ranging from Humvees and night-vision goggles to arms and ammunition.
night vision n.
Vision occurring in dim light.