Muhammad was a false prophet so case closed. You cannot build a religion around a false prophet. Maimonides called him Ha Mesgugga. The crazy one
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Our greatest theologian of the last millennium, Maimonides, wrote in his famous Epistle to the Jews of Yemen that Mohammed was “a madman”
(”ha-meshugga’”). The Rambam also noted the depth of Muslim hatred for the Jews, but, most importantly for our era, he also remarked — 835 years ago! — on the Jewish tendency to denial, a feature that this sage of sages insisted would hasten our destruction.
http://newenglishreview.org/blog_direct_link.cfm/blog_id/8237
Tell that to AlGore.
“We face existential troubles, but nonetheless, it appears as though the ability to perceive reality as it is, all that it entails, and to act in order to distance danger and overcome it, is an ability that the Jewish people lack.” —Netanyahu
http://blogcentral.jpost.com/index.php?cat_id=&blog_id=50