The Associated Press:
McLEAN, Va. (AP) — Textbooks at a private Islamic school in northern Virginia teach students that it is permissible for Muslims to kill adulterers and converts from Islam, according to a federal investigation released Wednesday.
Other passages in the school's textbooks state that "the Jews conspired against Islam and its people" and that Muslims are permitted to take the lives and property of those deemed "polytheists." Read more
Note: These 'disturbing' textbooks are merely the Tafsir (interpretation) of Muhammad's words and deeds (Hadiths), Islamic law (Sharia), and the Quran. They are not considered as disturbing at all in Muslim countries.