Although the cover blurb for this 1970 novel states that TSM is "A book Orwell or Huxley might have written," I beg to differ. Blum does take us on a 'mind trip' that is for sure, but this is hardly a dystopian vision of the future. While billed as science fiction, this could just as easily been touted as a cold-war thriller.
Deep in the black budget for the US army is the Agency, a research facility that specializes in the mind, or rather, memories in the brain. Scientists have discovered a way to selectively edit memories, write new memories, and even create an entire new memory/persona. Our main protagonist, 'Bear', is a Russian-American scientist at the heart of the Agency. The book starts off when a 'volunteer' arrives at the agency; his mind will be wiped and Bear's memories will be 'uploaded' if you will, creating a 'copy' of Bear (only the volunteer is black, so he becomes 'black bear', get it?). The experiment has been tried before, but the 'copy' only lasted six months before total breakdown. It looks, however, like black bear will be a winner. It also seems the Soviets have a similar agency doing similar things, and when black bear 'defects' to the Russians, things get interesting...
TSM is difficult at parts due to the incessant flashbacks of Bear-- his memories, reenacted, edited and such are feed into black bear and we for the first part of the book go back and forth between now and Bear's past. This may have made a big splash when it came out, but it seems rather tame today. Three cold-war stars.