La Jornada has gone "undercover" in an investigation of what in Mexico is known as the Iglesia Universal del Reino de Dios, or the Universal Church of the Kingdom of God. Of Brazilian origin and of the theology of prosperity, the UCKG probably ranks around 13 million members world wide, and is absolutely and stunningly filthy rich, and under investigation for fraud and tax evasion in multiple countries.
The article is well worth a read. The manners in which the UCKG is trying to extract a tithe - yes, the tithe, or the 10-percent-of-all-your-income tax, from its congregation is simply stunning in its cynicism. Read for yourself.