The White House Office of Information and Regulatory Affairs (OIRA), the clearinghouse for federal regulations, has brought in a conservative economist, Randall Lutter, to review regulatory proposals from agencies. The move has upset OIRA critics and unnerved those who interpret Lutter's past writings as a sign of his views on public health and environmental regulation. Those working inside government and those who know him argue that the criticisms of Lutter, a civil servant on temporary assignment to OIRA, are unfair.