New from Pew Research: Q&A: The challenges of estimating the size of Europe’s Muslim population https://t.co/XxHDUj3V8H

New from Pew Research: Q&A: The challenges of estimating the size of Europe’s Muslim population https://t.co/XxHDUj3V8H (http://twitter.com/muhamadiqbaldar/status/936227616541106177)