He could have, it is very likely that he did -did you guys catch the soundbites on his reaction-
but consider this:
<< Isreal would like nothing better then if we would wipe all Arabs off the face of the Earth. >>
In this conflict I would do the same as in the gulf war, tie Israel to short leash and not let it anywhere near the combat zone. We are talking after all of exacting revenge on arabian, islamic fundamentalists.
If Israel is party to this and not on the sidelines, support on the arabian peninsula for an anti terrorist campaign will be zero and could potentially bring the arab nations against the eventual coalition. That could then just ride itself up to a holy war that goes out of control. I certainly hope that a war between east and west based on twisted religious beliefs will not materialize. Thi is a very delicate subjekt and up until now the US has handeled it well (negotiations with pakistan for example)... lets hope the government keeps this up and avoids treading on anybody toes!