A decade after 9/11, U.S. Muslims grapple with their place in American society in the face of concerns about homegrown terrorism and questions by non-Muslims over the threat they might pose.

Experts say Islamic law, or sharia, holds wide appeal for Muslim populations in many countries and is beginning to spread via democratic means, but it is also being used as a tool of Islamic militanc…

Western Europe’s burgeoning Islamic population continues to spark concerns about Muslim assimilation and a cultural divide.