 Many states are failing to track how frequently children in foster care facilities are abused, sexually assaulted, or improperly restrained, leaving them vulnerable to mistreatment. That's the finding of a new report from the U.S. Health and Human Services Office of Inspector General. Some 50,000 children are in foster care, many run by a handful of large for-profit companies financed by taxpayers. Jim Crisula, CBS News.