The Pew Research Center's in-depth look at Islam  is based on 38,000 face-to-face interviews in more than 80 languages covering 39 countries. Anyone who covers religion ought to read this study, not to mention public policy makers.
Below are a five takeaways as reported in a CNN story :
1.) Differences between U.S. and international Muslims are vast
2.) Sharia law favored, especially by more devout Muslims
3.) Most Muslims believe religion, politics should be intertwined
4.) Around the world, Muslims heralded religious freedom
5.) Islamic extremism widely rejected, but still a concern