Television evangelist Jimmy Swaggart's weekly ministry was seen by over two million people in big cities and small towns across the U.S. and Canada.But of the tens of millions of dollars he raised through his appeals, only a tiny portion actually went into charity work. Several years before his fall, Frontline investigated whether the money these modern revivalists raise goes to do God's work or to keep the preachers on TV. Should the government regulate religious fund raising?