Many of them will soon enough commit acts of terrorism and murder against citizens of this country. Mark my words.
I have no doubt.
I remember reading about it here on FR.
Our immigration authorities are essentially useless. The Muslims are concentrated in Michigan because of its close proximity to the Canadian border. Under the British Commonwealth of Nations model, the Muslims emigrate to Canada and stay put long enough to fix up their paperwork. Then they emigrate to the USA while claiming to be peaceful Canadians rather than hostile Arabs. The joke is that ICE lets them do it.
Dearborn, Michigan, is no longer a territory under control of the US Federal or Michigan state governments. It is now a foreign enclave, essentially a no-go zone for most Americans, and once the preponderance of the Islamic population grows large enough, it will become a no-go zone for all non-Muslims.