When Iranian President Mahmoud Ahmadinejad called the Holocaust a "myth" this week, he wasn't only embracing one of the key tenets of modern anti-Semitism. Experts say his harsh rhetoric was also an effort to signal that Iran, not al-Qaida, is the leading force behind militant Islam...And by appealing to Muslims worldwide, he aimed to bolster his regime at home and win support from Arab nations against the West. When Iranian President Mahmoud Ahmadinejad called the Holocaust a "myth" this week, he wasn't only embracing one of the key tenets of modern anti-Semitism. Experts say his harsh rhetoric was also an...