Forty years after President Ronald Reagan first conceived the idea, defense industry leaders say the technology is finally advanced enough to build an invisible protective dome of space-based radars, missile interceptors and laser weapons over the United States.
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The Pentagon said it would investigate what it claims are leaks of national security information, saying that the probes could include polygraph tests for employees in the Defense Department.
Defense Secretary
First he was a "knucklehead" now he's a "smarta--."
Minnesota Gov.