The Internal Revenue Service is charged with enforcing this law. I'll concede that the agency hasn’t been very aggressive. For too long, the IRS has put the emphasis on education, not enforcement.
--snip--
Why the hold-up? To the IRS I say: You know what happened this weekend. It's time to get the ball rolling by stripping some of these politicking churches of their tax-exempt status.
MORE: http://au.org/blogs/wall-of-separation/sunday-scofflaws-it-s-time-for-the-irs-to-crack-down-on-pulpit-freedom