Interestingly enough, I have explored the MkUltra projects, at least what could be known, for many years beginning back in the 90s with the advent of the internet. Back then, declassified documents, white papers, etc., were available online for quite some time. These were items that were easier to find back then, often through P2P networks, where anything you could think of was uploaded and available to acquire. In many ways this was the golden age of information, before they completely co-opted and took control over the internet and scrubbed it of untold amounts of great information that also happened to be controversial, and certainly somewhat incriminating to the establishment, as it were.
I have hard drives full of information from all my exploits back then, and I am very glad that I did. Anyway, long story short, I have all of the MkUltra related documents that were released, as redacted as many of them were, which I considered a coup in that a), they have been mostly scrubbed from the internet, and b), there were many that were destroyed and of course never seen by the public. Everyone can speculate about why many were destroyed, but I don't think that it takes much of an imagination to sort out why some documents would never see the light of day. But anyway, I do have hundreds of pages of documents related to the MkUltra projects and sub-projects and will revisit them some time soon. From a historical point of view, I think it makes sense to look at these "projects" as a real low-water mark in terms of ethics (and in other ways), to say the very least. But this "research" has some rather dark implications by virtue of who engaged in it, why they were performed, and what the true objective(s) were behind this veil of "experimentation.."