Charles E. Land received a Ph.D. in statistics from the University of Chicago. He studied the risk of radiation-related cancer@the Atomic Bomb Casualty Commission and the Radiation Effects Research Foundation in Hiroshima, Japan, before joining the National Cancer Institute in 1975. Land served on the International Commission on Radiological Protection for 20 years and was instrumental in producing the 1985 National Institutes of Health radio-epidemiological tables and the 2003 NCI-CDC interactive computer program developed to assist adjudication of compensation claims for cancers following occupational exposures to radiation. His research interests include quantifying lifetime radiation-related cancer risk with emphasis on implications of uncertainty for public policy.