An anti-Islam group has sparked controversy with the purchase of advertisements on San Francisco's public buses that display the image of Adolf Hitler and accuse the religion of fostering anti-Semitism.The group calling itself the American Freedom Defense Initiative, which sued New York City's Metropolitan Transportation Authority to run similar messages last year, purchased 50 large ads on San Francisco buses. They began appearing within days of attacks by Islamist militants in Paris that killed 12 people at the satirical newspaper Charlie Hebdo and another four at a Jewish supermarket. A policewoman was also shot dead."Islamic Jew hatred," the ads read. "It's in the Quran."