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The new "Strategic Concept" that NATO is expected to adopt at its Lisbon summit this weekend offers the advantage of an early initial capability to defend Europe against the emerging Iranian ballistic missile threat, even though -- in deference to Turkish sensibilities -- NATO is not expected to identify Iran as the source of the threat. For now, the Islamic Republic is unable to reach targets in Eastern Europe, but that could change as early as 2012 if Tehran decides to commence production of the medium-range Sajjil-2 missile. And because the NATO concept hinges first on the deployment of ship-based missile systems to the eastern Mediterranean, followed later by the deployment of land-based interceptors, it entails certain vulnerabilities that Iran could exploit in the near...