The majority position on this question was well stated by Peter Novick, in his book The Holocaust in American Life. He points out that the precision of Allied bombers was such that perhaps as many as a third of the bombs dropped on the camp would have hit prisoners' barracks. Moreover, experience with the strategic bombing had indicated that bombing of rail lines was actually quite ineffective. Novick concludes, "the current received version -- a fruitful opportunity, fervently pressed and frivolously dismissed -- must contend with the strong possibility that this ambivalently presented suggestion was a well-intentioned but misbegotten idea that we can perhaps be grateful was turned down."[1]
The minority position is represented by David Wyman, in his book The Abandonment of the Jews. Wyman focuses much of his argument on the bombing of rail lines specifically to prevent the deportations of Hungarian Jews to Auschwitz and elsewhere in the summer and fall of 1944. He lays the blame at the feet of the Roosevelt administration and specifically the War Refugee Board. Conversely, he rejects arguments about the feasibility and efficacy of bombing the rail lines and the preference of the Operational Plans Division to bomb industrial targets. "In reality, Auschwitz was part of those target systems," Wyman writes. "OPD was either uninformed or untruthful."[2]
For my own part, I come down on the side of the majority position as expressed by Novick. In either case, the debate brings to the fore the matter of whether a balance can struck between strategic and humanitarian goals. I don't think that they can: strategic goals or concerns will always override humanitarian goals. In considering this question, I often think of the current situation in North Korea. On the one hand, North Korea is easily the most repressive state in the world today. Its leadership cares so little about its own people that the country has regularly experienced famine while the ruling elite lives in luxury. It is a situation that virtually calls out for humanitarian intervention. On the other hand, North Korea has nuclear weapons, and any attempt to intervene militarily in its affairs would almost certainly be answered with the deployment of these weapons. The strategic concerns must outweigh the humanitarian concerns.
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[1] Peter Novick, The Holocaust in American Life (New York: Houghton-Mifflin, 1999), 58.
[2] David S. Wyman, The Abandonment of the Jews: America and the Holocaust, 1941-1945 (New York: Pantheon, 1984), 297.