A flight test of the exercising elements of the Ground-Based Midcourse Defense (GMD) system is launched by the 30th Space Wing and the U.S. Missile Defense Agency at the Vandenberg AFB, California (REUTERS/Gene Blevins).


The limits of U.S. missile defense

March 30, 2015, Steven Pifer

Steven Pifer writes that U.S. efforts to build a viable missile defense, including "Star Wars" have been costly and often ended in failure. He argues that the United States should make prudent investments in missile defense systems, but should keep in mind technological constraints as well as the continued dominance of nuclear offense over defense.

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