It seems almost unthinkable, but Islamist groups are, as we speak, hard at work creating Muslim states-within-states in the U.S. Indeed, this process has been unfolding for a long time across the Western world, through the creation of isolated Muslim enclaves in both rural and urban areas, as well as through the designation of "no-go zones" where governments admit to having little authority over Muslims living there, essentially leaving them to function as autonomous regions.
Daniel Pipes has tracked numerous examples since 2004 of Muslim groups working to create communities based solely on Islam and run by Shari'a law. As discussed by David Kennedy Houck in 2006, "Although such concepts are antithetical to a free society, U.S. democracy allows the internal enclave to function beyond the established boundaries of our constitutional framework."
For example, one such community, Gwynn Oak, has been created in Baltimore, Maryland, consisting of Muslim immigrants and African-American converts. The project is led by John Yahya Cason, director of the Islamic Education and Community Development Initiative. Cason explained that the neighborhood is a response to the problem that "Muslim communities are ruled by Western societal tenets, many of which clash with Islamic norms." In his opinion, there is a need for communities with "the totality of the essential components of Muslim social, economic, and political structure." As such, the Gwynn Oak enclave follows specific moral rules based on Islam and people there speak Arabic. On September 13, 2009, the construction of its three-story mosque began. Approximately 400 Muslims now live in the vicinity.