Since it's not the real Hitler, who cares? It's not even his consciousness. A hologram could look like anyone and anything. This is no more the real Hitler than the one from "Nothing Human" was the real Moset. There was absolutely no relation. You might as well ask "Would you let someone wearing a Hitler Halloween costume save your life?"
As for using the knowledge: Whatever the Nazis did, has already been done. Those were disgusting crimes the Nazis committed, and everybody knows it, but refusing to use the knowledge gained therein will not cause it to un-happen. Letting people die because of such refusal will, similarly, also not cause the Nazis to never have existed.
That knowledge is out there. It's not going anywhere. So is there any reason why it shouldn't be turned to good, rather than evil? If so, I'd like to hear it.
It's late and I'm tired, so maybe I'm rather off base from what you're suggesting, which I do agree with, but might it be extrapolated to current real world parallels such as nuclear disarmament? You arrive at a framework
all enabled parties agree to (of course never going to happen), but the knowledge is never going to be erased or unlearned. If such a scenario could be made with effective, verifiable safeguards, well perhaps it might be effective for a time at least, but the possibility of it successfully being abrogated will always remain. NSA surveillance? The spectre of privacy degradation (to the extent that privacy is even widely extant any longer) is unquestionably a vital issue, one that is integral in this country's founding documents and burnished over time. The question of the incursions going beyond the realms of metadata aside, the ability to collect the information is never going to disappear as if it never was known, indeed, it will only be greatly enhanced as time (not far off either) proceeds. Statutes and regulations can be agreed upon now to legally limit what is permissible, but putting aside the harmful consequences that such constriction of information gathering might portend given such a wide range of bad actors being around every corner, such safeguards, as they are considered, will inevitably be worked around or ignored in the present, and their effective agency will likely be superceded by those inevitable developments soon to come, that might very well render the substance, if not the spirit, of these protections null and void.
Bottom line: This is the world we live in, it can't be reversed save by substantial if not global destruction, and the combination of untrammeled growth of sophistication of materials, systems, and interoperability and humans' unchanging nature, means that countervailing attempts that appear to curb the threat that such weapons and tools pose, is almost certainly illusory. Now depending on what theoretical flavor one favors, the existence of another construct, perhaps mere centimeters away, might allow for a plausibly different conclusion. But that's a discussion for forum members who actually know what they're talking about in that arena.
