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The '''Union of Concerned Scientists''' is a non-profit, liberal political action group involved in issues of nuclear war, envrionmentalism, and other issues.  [http://www.ucsusa.org/]

The '''Union of Concerned Scientists''' is a non-profit, liberal political action group involved in issues of nuclear war, envrionmentalism, and other issues.  They were one of the most active critics of [[Ronald Reagan]]'s [[Strategic defense initiative]]. [http://www.ucsusa.org/]