Walker was a history instructor at the
University of Maryland in the mid-seventies but was hired by the
Nuclear Regulatory Commission (NRC) in June, 1979, working under the chief historian, George T. Mazuzan. Walker was able to write in a lucid manner applauded in popular science press.
Prompt and Utter Destruction Roger Chapman, writing in Bowling Green's university press, characterized the book on the
atomic bombing of Japan as "a brave attempt to bridge two diametrically opposed positions" about whether the bombings were necessary, justified or humane. David Hendrickson, writing in
Foreign Affairs, stated that Walker's position was "that some officials saw diplomatic benefits 'vis-a-vis' the Soviets from the use of the bomb but insists that such motivations were of decidedly secondary importance."
Three Mile Island He also authored a comprehensive review of the
Three Mile Island accident. According to his own account, Walker's work debunked the "grievous misconstructions [which] were portrayals of the bubble issue that were central features of at least two books that came out shortly after the accident (in 1982) and in three television programs..." Walker disputed the alleged imminence of an explosion; a central point of his argument was that if the situation was as dangerous as previous writers contended, that
Jimmy Carter would not have been permitted to visit the TMI power plant.
The Road to Yucca Mountain In
The Road to Yucca Mountain, Walker covers the U.S. government's controversial attempts to address the engineering and social issues associated with
high-level radioactive waste repository (HLRWR) management and
spent reactor fuel (SRF). He starts with the
Manhattan Project and works through the policy debate. In 1987,
Yucca Mountain, Nevada emerged as the most likely candidate for a repository. He explicates the
United States Atomic Energy Commission's flop with its first attempt to build a HLRWR in a
Kansas salt mine. He addresses
deep geological disposal and surface storage of HLRW and SRF as well as fuel reprocessing. The
Organization of American Historians awarded the book the 2010
Richard W. Leopold Prize for historical work being done by historians outside academia. ==Books==