I would like to thank Mani for his valuable input to the discussion. He mentions the Islamic group Hizb ul Tahrir. For those of you who do not understand the reference perhaps this may help...
"An interesting case is that of Hizb ul-Tahrir (“Liberation Party”): it is a radical
fundamentalist party based in London that was originally set up as a Palestinian Islamic
movement in 1953. Officially non-violent, its ideas are nevertheless very radical. It advocates
the immediate re-establishment of the Caliphate and the ultimate conversion of the entire
world to Islam. Hizb ul-Tahrir is now a genuinely internationalist movement; indeed, it is
difficult to identify and locate precisely its controlling authority…
…which is under the control of a group of militants based in London.
The movement is rapidly growing and is now farthermost a European one.
The Hizb ul-Tahrir is closely linked with the Muhajirun organization of Sheikh Omar Bakri.
Bakri is a Syrian resident in London who maintains a high profile in the English language media.
Though Bakri does not make explicit reference to Hizb ul-Tahrir, his
pronouncements and website contents are often identical with those of Hizb ut-Tahrir. The
Muhajirun movement, therefore, is likely a front for Hizb ul-Tahrir in Europe, which
developed in the 1980s and 1990s in Great Britain, Sweden and the Netherlands—and to a
lesser extent in the United States. It has also a branch in Moscow. Starting in1997, it
established new chapters in Muslim countries, including Sudan, Uzbekistan and Pakistan."
http://www.csis.org/ruseura/pubs/AFP/roy.pdf