Tensions with Russia have damaged joint
US-Russian nuclear security and nonproliferation efforts and the Kremlin is
reconsidering its future cooperation, said National Nuclear Security
Administration chief retired Lt. Gen. Frank Klotz.
An Orbital Science Antares rocket, carrying
supplies to the International Space Station, exploded six seconds after
departing Wallops Island, Va., Tuesday night.
The Air Force successfully launched the eighth
GPS IIF satellite Wednesday.
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