In 1996, President Clinton ordered the formation of the Advisory Committee on Human Radiation Experiments (ACHRE), which undertook to evaluate the morality of a myriad of secret and publicized radiation experiments ranging from 1944 to 1974. The goal of this thesis is to analyze the ways in which that committee formed moral evaluations and the extent to which its strategies related to a broader historical and philosophical discourse. Here I attempt to describe two specific techniques of simplification the committee deploys in order to make a retrospective moral analysis possible. Although the techniques comprise specific problems, frameworks, subjective perspectives, and conceptual links, their unifying principle is the field of choices the techniques produce. In the first technique I outline, I argue that by focusing on the problem of historical relativism, the committee gains a platform through which it would be granted flexibility in making a distinction between moral wrongdoing and blameworthiness. In the second technique of simplification I outline, I argue that the committee's incorporation of a principle to reduce uncertainty as an ethical aim allow it to establish new ways to reconcile scientific aims with moral responsibility. In addition to describing the structure of these techniques, I also demonstrate how they relate to the specific experiments the analysts aim to evaluate, using both the ACHRE experiments as well as the Nuremberg Trial experiments as my examples. My hope is not to show why a given committee made a particular moral evaluation, or to say whether a decision was right or wrong, but rather to illustrate how certain techniques open up a field of choices that allow moral analysts to form retrospective moral judgments.