The threat of rocket fire all over Israel, including Tel-Aviv, is looming large over our heads. There are two very possible scenarios that would bring about such a hellish result. Both scenarios involve best buddies Iran and Syria, as well as their allies Hamas and Hizbullah. If Israel (or anyone else) attacks Iran's nuclear facilities, Iran, Hizbullah and Hamas will attack the entire state with rockets. If NATO intervenes militarily in Syria, then Syria, Hizbullah and Hamas will attack Israel.
Action in either Iran or Syria is stupid. In Iran, an attack on the nuclear facilities may eventually be the last option, but we aren't there yet. Impose tougher sanctions and see if they work. As for Syria, let them deal with their own internal chaos on their own. I'm not willing to risk Israeli lives to save the Syrians who are rising up against Assad.
However, since either situation would lead to all-out war and missiles all over Israel, if one scenario comes to fruition, then the other one should be executed as well. A NATO attack on Syria would make an Israeli strike on Iran's nuclear facilities a wise move, provided that Syria does indeed retaliate with rockets. And vice versa - if Iran's atomic plants are attacked, followed by an attack on Israel, NATO should help take out Assad's regime, like it did with Qaddafi.