From the Middle East Quarterly:
The Islamist Challenge to the U.S. Constitution
by David Kennedy Houck
The Internal Muslim Enclave
The internal Muslim enclave proposed by the Islamic Center for Human Excellence in Arkansas represents a new direction for Islam in the United States. The group seeks to transform a loosely organized Muslim population into a tangible community presence. The group has foreign financial support: it falls under the umbrella of a much larger Islamic group, "Islam 4 the World," an organization sponsored by Sharjah, one of the constituent emirates of the United Arab Emirates. While the Islamic Center for Human Excellence has yet to articulate detailed plans for its Little Rock enclave, the group's reliance on foreign funding is troublesome. Past investments by the United Arab Emirates' rulers and institutions have promoted radical interpretations of Islam. 
The Islamic Center for Human Excellence may seek to segregate schools and offices by gender. The enclave might also exercise broad control upon commerce within its boundaries—provided the economic restrictions did not discriminate against out-of-state interests or create an undue burden upon interstate commerce. But most critically, the enclave could promulgate every internal law—from enforcing strict religious dress codes to banning alcohol possession and music; it could even enforce limits upon religious and political tolerance. 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. At the very least, the permissible parameters of an Islamist enclave are ill defined.
The greater American Muslim community's unapologetic and public manifestation of belief in a separate but equal ideology does not bode well. In September 2004, the New Jersey branch of the Islamic Circle of North America rented Six Flags Adventure Park in New Jersey for "The Great Muslim Adventure Day." The advertisement announcing the event stated: "The entire park for Muslims only." While legal—and perhaps analogous to corporate or other non-religious groups renting facilities, the advertisement expressly implied a mindset that a proof of faith was required for admission to the park. In his weblog, commentator Daniel Pipes raises a relevant and troubling question about the event: because it is designated for Muslims only, "Need one recite the shahada to enter the fairgrounds?"
Here's the link to the full article: