I think Clark really underestimated the power of professional jealousy in regards to Deter. I'm sure there are at least a couple of reputable psychiatrists out there perfectly willing to examine Lois, question Deter's 'therapy' and take Deter down for professional misconduct.
Also I've always wondered what Deter's real motive was for going after Lois - he had too much to lose going after her the way he did. Was he actually trying to get her to remember something about Luthor, or even Superman, while in an isolated and controlled environment?
