Britain's promised crackdown on the "preachers of hate" began this morning as ten foreign nationals were detained. Among them, Times Online has learned, is Abu Qatada, described as al-Qaeda’s spiritual ambassador in Europe. Abu Qatada, whose is also known as Sheikh Omar Abu Omar, and the other nine foreign nationals are being held by four police forces, working with the Immigration Service. They are in a prison service facility while the Home Office prepares to deport them. The Home Office has not confirmed that Abu Qatada is among the people detained this morning but Charles Clarke, the Home Secretary, said...