The Freedom From Religion Foundation (FFRF), an atheist activist non-profit, has a history of advocating for church-state separatism. Most recently, in November, the group sued the Internal Revenue Service (IRS) in an effort to force the government to crack down on the political activities being undertaken by churches. The group followed up this legal challenge with yet another lawsuit last Thursday -- one that targets the government's alleged "preferential treatment of churches."
MORE: http://www.theblaze.com/stories/atheist-group-sues-irs-citing-preferential-treatment-of-churches/
See also...
Atheist group sues IRS for "discriminating against' secular non-profits
http://www.repost.us/article-preview/#!hash=e051a3755f6d801a87f9104f40305638
Atheist group files lawsuit over church tax status
http://www.jsonline.com/news/wisconsin/atheist-group-files-lawsuit-over-church-tax-status-ub86k98-185090301.html
