The debate in the United States over ballistic missile defense concerns both its technology and its strategic impact. Supporters contend it is crucial to protect the United States against rogue states that may eventually acquire long-range nuclear missiles.
Critics say that threat is much exaggerated.
The confidence of supporters of ballistic missile defense is matched only by the skepticism of opponents. I feel we are technologically able right now to move ahead with missile defense. The only thing stopping us now is a policy decision. The technology is maturing to the point where we can defend ourselves effectively and reliably against very small missile threats, the kind of threat that could be posed by North Korea or Iran in the not too distant future. As one who has closely studied nuclear weapons issues, Mr. Blechman says continuing to rely on deterrence in an increasingly fragmented world with a variety of irrational rulers is highly dangerous.