In a move that puts a cloud over transparency, White House officials are blocking access to the lists of the names of visitors to the White House. The practice, carried over from the Bush administration, argues the public does not need to know who comes calling at the Executive Mansion, even for policy purposes. "We are deeply disappointed," said Citizens for Responsibility and Ethics in Washington spokeswoman Anne Weismann, whose group is suing to get the records. "The president, who has committed his administration to transparency and accountability, now takes the position of the Bush administration that the public is...