A Ukrainian frigate spent days with nobody knowing whose side it was on. Imagine that happening with a bomb.
Israel will need to achieve surprise if it hits Iran's nuclear program—yet that's very hard to do.
America has pushed its allies to refrain from developing nuclear weapons. Counterintuitively, that's making nuclear deterrence less reliable.
Nuclear deals with Russia are actually working to our advantage.
The path got longer—but the arguments are still sound.
The tough task of reassuring Persian Gulf allies as Iran advances.
The threat of proliferation is at an all-time low.
Tehran's participation would have drawbacks, but it'd be a positive step on balance.
Making Iranian human-rights violations an issue in the nuclear negotiations would be counterproductive.