As an undergraduate in investigative journalism I began serious research some years ago on the issues you raised and have a few comments:
1. Allen Dulles, whose brother was secretary of State while he was head of the CIA, was a principal financial operative with the Bush-Walker, Harriman, and Rockefeller families in backing the Nazis and in financing the Holocaust.
2. Allen Dules during WWII was the head of intel operations for the OSS for the allies (while at the same time having massive military/corporate operations inside the Third Reich) based in Switzerland where the nazi gold was being laundered and stashed.
3. The Dulles brother's law firm, Sullivan and Cromwell, represented the interests of IG Farben which ran Auschwitz and the death/slave labor camps with the financial support of the Bush-Walker family and the Rockefellers (Standard Oil). and others including IBM, Ford, GM, Bayer, Agfa,Merck, and many other Wall Street corporations were part of these operations doing everything from pharmaceutical research (deadly human experiments on political and ethnic prisoners), synthetics and petrochemical production, armaments etc.
4. FDR, according to John Loftus ("Secret War against the Jews") was collecting information to prosecute these bastards at the end of the war. There are many reports that FDR's death was not due to illness, but Truman (who had replaced the left leaning former VP (Henry Wallace) under FDR in a political coup at the 1944 Democratic) convention) was not in on FDR's investigation and did not prosecute or investigate Wall Street support of Hitler and the Nazis. FDR was not powerful enough to take these guys down on his own, but wanted to win the war first and was colecting his own intel to prosecute. The entire history of the US was therefore totalt changed when FDR died and all possibility of stopping profascist wall street corporate entities and families who'd committed treason died with FDR.
5. The OSS and then the CIA protected and nurtured Nazi operatives and brought them to the US. The Bush family as well as the other investors in Hitler got their corporate profits from the Holocaust after the end of the war (the proNazi corporate assets controlled by the Bush-Walker and Harriman and Dules families had been seized as Nazi assets in 1942 but were distributed back to them after the war).
6. Assets of the Third Reich and military intel operations were moved to Argentina and Chile and throughout Latin America as part of a long term 5th column operation of the fascists beginning in the 1920's. Argntina and Chile had uranium and dictatorships kept an iron grip on democracy and openness. War criminals could live their freely without fear of extradition. While Israel kidnapped Nazi death bureaucrat Eichmann @ 1960 and tried and hanged him, generally the nazis were rotected there (Eichmann was an amoral bureaucrat who had little intel value).
7. Klaus Barbie, the Nazi butcher of Lyons, was protected by Allen Dulles, though a brutal torturing monster, as too valuable an intel asset to turn over for war crimes. He tortured to death Jean Moulin and other top leaders of the French resistance (some believe at the behest of OSS operatives who felt Moulin was too much of a leftist and was too effective. REMEMBER that IF the Nazis had won the war the Dulleses, the Bushes, the Rockefellers, Morgan, and all these treasonous bastards would have been running the economy of the global fascist Third Reich.
8. Nazi assets were run by Dulles and his intel operation throughout the twentieth century. Bush I got elected with Nazi political suport. When he became head of the CIA (1975-6) he ran these operatives as he had run political ops when he was head of the republican party under Nixon.
9. JFK booted Dulles as head of the CIA because of corrupt ops which ran counter to JFK's policies, but behind JFK's back, Dulles still ran ops as a contract agent for the CIA out of the Princeton (University) intel advisory panel which ran scenarios and advised/devised strategies for global hegemony of the wall street interests. Rumsfeld and Carlucc (CIA assassin and head of the Carlyle group) came out of the Pinceton intel recruitment ops. Dules then ended up as the key proponent of the lone gunmen cover story to cover up Lee harvey Oswald's CIA/intel role. Oswald, btw, was in the same navy intel unit as Bob Woodward - Navy signal intel - and Woodward was in the CIA-Yale recruitment sister society to Skull and Bones (where CIA personnel director H. Pomeroy Davison was a member) known as Book and Snake.
http://www.skepticfiles.org/socialis/bushboys.htm10. Assassination, blackops, blackflag ops, COINTELPRO, shadow government ops and now private contracted mercenary corporations became the primary tools of the proNazi corporofascist elites. In the 1960's, 1970's, 1980's, 1990's, and in this new millenium the same treasonous profascist eugenicists who have engage over and over again in mass murder, genocide, war crimes, crimes against humanity and simple brute murder and viciousness, utilized the lessons they learned in financing and promoting and profiting from the Third Reich and the Holocaust to continue their campaign of global terror --- but particularly here in the United States,
The lessons of history cannot be ignored, nor can we simply "look forward". The evil which was Naziism is still with us. It lurks in the hearts of Cheney and Bush and the intergenerational nazi "masterminds" of global corporate fascism: the architects of globla slaughter and global human enslavement.
Anyone who has even a snowball's chance of disturbing these dark powers of death is running the risk of annihilation. Wellstone, JFK, MLK, Malcolm x, Che, Lumumba, RFK, Allende, Mossadegh, etc etc etc. The same runs true for journalists who try to expose it here or anywhere.
It is all about fascism.
Obama fails to prosecute and investigate and imprison at the peril of democracy and of all humanity for all time.
Even a political pragmatist MUST know that failure to bring justice to traitors and fascists who wield incredible wealth and power keeps the whole planet and this beloved country of ours at continued risk of murder, mayhem, enslavement, starvation, disease and misery.