We don’t want to start making moral judgments, do we? Countries like the US are least likely to legally use this sort of chemical lobotomy in intelligence work. It’s doubtful that the British would as well. There are always questions, I assure you.

You make a good point about lab rats. Their mammalian brain is a good basis but when dealing with memories it’s more difficult to deal with decades of learning. The brain is the organ we know the least about. Given that lack of knowledge it’s unlikely we’ll see such a thing in the near future. You’ve demonstrated that this information is publically available and therefore open to scrutiny. That scrutiny will only increase over time.