A technological crackdown, telegraphed by Mormon leaders, has effectively blocked the pre-eminent whistle-blower of controversial proxy baptisms from accessing the LDS Church's database that chronicles so-called baptisms for the dead. LDS officials defend the move, saying it helps prevent overzealous Mormons and mischief-makers from violating church policy by submitting the names of prominent Jewish figures, such as Anne Frank and Daniel Pearl, both discovered on the baptism rolls in recent weeks. But the decision to suspend the New FamilySearch accounts of anyone searching for Jewish Holocaust victims or celebrities also freezes out Utah researcher Helen Radkey, whose baptism discoveries have embarrassed the LDS Church for decades.