An undercover documentary by a fearless reporter was undertaken in London. His purview was to survey the many mosques that have sprung up in that international city since the vast immigration wave of the 1990s. The teachings represented by the imams and lecturers in this video correspond with orthodox Islamic teachings that are adhered to throughout the Islamic world. Discouragement of befriending non-Muslims, beating of woman, the obligatory nature of jihad, Islamic anti-Semitism, and praise of Sharia are unfortunately based directly on the primary Islamic sources found in the Koran and the Hadith.
As they say, a picture speaks louder than a 1,000 words. So may a video speak louder than a million.