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
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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