If the Muslim religion tells Muslims to attack non-believers, then why are there so few attacks?

Your logic is flawed, because you are taking a passage from a book you obviously have never read. There are 44 passages that refer to "non-believers", with such moral renderings as "It is NOT a sin to Allah to lie to a non-believer..." something Obama understood long ago. Throughout the Koran there are numerous references to "distrust of, disobedience to.." non believers. That passages referring to death, are founded around the coming of the 12th Imam, the bringer of Armageddon for the Muslim Nation. During this "period", ANYONE not converting and accepting Allah, is to be beheaded. There is NO tolerance of anyone not a Muslim in this coming age. Whats VERY disturbing is the President of Iran and his words. He wants to "hasten" the return of the 12th Imam while he's in charge of Iran.