As SPIKE said... It is believed that Judah snitched on Jesus so then the Romans crucified him, and since Judah was looked upon as a right a**hole..
Anyways, I read in the paper some time ago that there may be evidence to show Judah didn't actually snitch on Jesus.. maybe this is a base for Christian antisemetism?
By the way.. antisemetism is a wrong term.. it means I hate people living in Israel, Syria, Lebanon.. around the Med-sea.. but during WWII Hitler turned it into hatred of the Jews.
Anyhoo, Muslims hate us for having Jerusalem, but go figure.. they killed a hell of a lot of non-Jews in the WTC on 9/11...
In fact, if I recall correctly, it mentions in the Koran that the Jews should NOT be harmed by the Muslims.. but all these Sheikhs have done something that made milions of people belong to a religion that calls for holy war on the Jews and the Western world..
Oh wel...