http://en.wikipedia.org/wiki/FLDS#Plural_marriage
Plural marriage
A view of the FLDS compound in Eldorado, TexasAt the time of his death, church leader Rulon Jeffs was confirmed to have married 22 women and fathered more than 60 children, although some[41] have suggested that he had close to 75 wives. Current estimates also state that Warren Jeffs may have upwards of 60 wives.[41] Critics of this lifestyle[citation needed] say that its practice inevitably leads to bride shortages and likely to child marriages, incest, and child abuse.
It has been reported that the FLDS Church has recently excommunicated over 400 teenage boys, some as young as 13, for offenses such as dating and listening to rock music. Former members claim that the real reason for these excommunications is that there are not enough women for each male to receive three or more wives. Six such teenage boys have filed a conspiracy lawsuit against Jeffs and Sam Barlow, a former Mohave County deputy sheriff and close associate of Jeffs, for a "systematic excommunication" of young men to reduce competition for wives.[42][43]
Critics claim that some members of the church are violating laws (because polygamy is illegal in the United States) when they participate in polygamy.[44] Critics claim that incest and sexual abuse of children are prevalent among church members.[45][46][47]