Would Iran be deterred as the Soviets and Chinese were by the threat of retaliation? Maybe, but would you trust the lives of your children to that guess? The point about arming terrorists — as the Iranians have been doing for 35 years — is that it provides deniability. If a dirty bomb were detonated in Chicago, would we retaliate against Tehran on the suspicion that the mullahs provided the uranium? We cannot even agree that our intelligence proves Assad used poison gas.
Every foreign policy action should be judged, not by whether it advances a naive fantasy of a world community punishing a miscreant, but by whether it advances American security. That means thwarting Iran by all means necessary.
Mona Charen is a syndicated columnist.