Daniel Larison in the American Conservative writes:
Attacking Iran’s nuclear facilities would be the beginning of a new open-ended military commitment and the start of a prolonged war with Iran whose effects will probably surprise us by being even worse than we imagined beforehand. On top of all that, it is likely that such a “preventive” war wouldn’t stop Iran from acquiring nuclear weapons, but would virtually guarantee that outcome. As Geoff Wilson explained over the weekend, attacking Iran would just drive their nuclear program deeper underground. Iran hawks like to invoke Osirak as proof that military action can halt another country’s nuclear program, but Wilson reminds us that the attack on Iraq in 1981 produced the exact opposite result.