To be accurate, it is not correct to call members of the FLDS sect Mormons. They are a splinter group that broke off from the Mormon church over a hundred years ago, I believe. The Mormon church does not have any affiliation with Warren Jeffs and the FLDS, nor do the FLDS and Warren Jeffs have any affiliation with the Mormon Church. The writing guide for the Associated Press states that only members of the Church of Jesus Christ of Latter-day Saints are correctly called Mormons. Other groups that have broken off at various times are not accurately labeled Mormon.
That being said, I have had the opportunity to visit several of these FLDS communities in Utah and Arizona. It was a very sad experience. Most of these people are sincere, if simply by the fact that this is all they have been taught from childhood. The conditions and the heirarchy, though, are stifling. Men who disagreed with the leadership in any way often lost their property, their wives, their children, and sometimes even their lives. Many young boys were simply thrown out and left to try to survive on their own as a part of recent "cleansing" activities.
My greatest concern is for these children placed in foster care. Their transition to life outside the compound will be very rocky, I'm afraid. I'll be eager to hear how things go and my best thoughts and wishes are extended to them.