Defense officials ask Congress to approve new dual-use satellites that can distinguish between "airbursts" caused by random asteroids sneaking into the atmosphere and exploding warheads. NPR's Eric Niiler reports.
Copyright 2002 NPR
Defense officials ask Congress to approve new dual-use satellites that can distinguish between "airbursts" caused by random asteroids sneaking into the atmosphere and exploding warheads. NPR's Eric Niiler reports.
Copyright 2002 NPR