Unfortunately, Sharia laws do play a part even in the USA. I am a USA citizen. Some of our banks are adopting it (AIG) in the form of Sharia finance. And the Muslims practice it in their communities. They are doing it by being polygamous, honor killings, waging Jihad as what we call terrorists and many other things. Our laws override their laws in a court of law, but not how they practice their ideology among themselves.
And there is this thing called ‘creeping sharia’ which is a slow acceptance of the Muslim’s ways by acquiescing to their demands such as in the TV, movies and news media. I will give you an example, in TV we are not portraying terrorists as Muslims but instead white Christians (due to the MPAC influence). We are not telling the truth about the Crusades, such as in Kingdom of Heaven (it is told as bin Laden sees the Crusades), and another example is in ‘2012’ where everyone else’s holy sites are ruined but no Islamic sites are ruined. There are many documentaries that are twisting Islamic history on Discovery, the HIstory Channel, etc.
In our schools we have weeks of twisted Islamic history, our kids required to memorize the Koran and take on a Muslim name. The same is not done for any others.
Our military didn’t deal with Maj. Hasan the way they should out of fear of going against political correctness which caters to Sharia laws.
The list goes on with examples of how our Universities allow the MSA to bash the Jews. UCIrvine, UCBerkeley, and many others have examples on youtube.