........ Simply amazing. For starters, there is no sizable offshoot of Judaism that supports holy wars. Second of all, what Roach said about their attack capabilities anyways. Third, Iran has openly declared that the second they get nuclear capabilities, they plan on launching a pre-emptive nuclear strike on Tel Aviv. Israel is surrounded on all sides by governments which have made public statements supporting the complete irradication of the jewish people - Forgive them for being a little jumpy.
As for humanity wiping itself out, I can't see it happening at all. Life in a post-nuclear world wouldn't be fun, but it'd be survivable for sure. Egypt might catch a few warheads, but the rest of Africa would be untouched. South America would be untouched. There would definitely be world-wide fallout, but not so much as to completely irradicate human life. Complete destruction of our race would require complete, quick, violent destruction of the entire planet. We couldn't dream of that kind of power.