Source: Beliefnet
http://www.beliefnet.com/story/153/story_15314_1.html
On September 20, 2004 Beliefnet reported, "over the last 40 years, small groups of devout Muslim men have gathered in homes in U.S. cities to pray, memorize the Koran and discuss events of the day. But they also addressed their ultimate goal, one so controversial that it is a key reason they have operated in secrecy: to create Muslim states overseas and, they hope, someday in America as well. These men are part of an underground U.S. chapter of the international Muslim Brotherhood, the world's most influential Islamic fundamentalist group and an organization with a violent past in the Middle East. But fearing persecution, they rarely identify themselves as Brotherhood members and have operated largely behind the scenes, unbeknownst even to many Muslims."