A reader notes:
Israel has had, for some time now, a nuclear deterrent in the form of its three (soon to be five) Dolphin Class submarines which can carry nuclear armed submarine launched cruise missiles.
Deployed in the northern reaches of the Indian Ocean, the submarines could easily reach any target in Iran. Since Iran has no deep-water navy, the submarines are in no danger from attack.
His source is this. More here. If accurate, it would render Krauthammer’s argument about Israel’s needing US nuclear protection from a first strike risk implausible.
The Dish 