http://mobile.nytimes.com/2014/05/24/us/leaving-islam-for-atheism-and-finding-a-much-needed-place-among-peers.htmlOne group that seeks to bridge that gap is Ex-Muslims of North America, which had an information table in the exhibition hall. Members of the group, founded last year in Washington and Toronto, recognize that their efforts might seem radical to some, and take precautions when admitting new members. Those interested in joining are interviewed in person before they are told where the next meeting will be held. The group has grown quickly to about a dozen chapters, in cities including Boston, Chicago, Houston, New York and San Francisco.