Recently, the Department of Energy compiled a selected group of health studies of Department of Energy contractor employees from the most recent editions of published articles and unpublished technical reports. Additional recent published studies were obtained from peer-reviewed scientific journals. The following review analyzed twenty-seven studies of workers at DOE sites and nuclear sites in the United Kingdom and Canada. They are mostly retrospective mortality studies where workers were followed for the duration of their employment and to their deaths. All told, workers at fourteen DOE facilities were found to have increased risks of dying from various cancers and nonmalignant diseases. The debate over the nature and extent of the risk of dying of radiation-induced cancers is clearly reflected in these studies. These studies affirm official risk estimates and show radiation risks, in some instances, are limited to a small number of radiogenic cancers. Despite these disagreements, there appears to be general agreement that DOE workers are experiencing excess deaths following radiation exposure.