Alibekov's book, Biohazard, was actually very good if limited in scope to things he dealt with in Biopreparat. Sure he was a "defector", but it was a bit of an interesting situation the way he writes it given how it all went down after the fall of the USSR (how his situation went down, that is). Plus, hsi attitude never really seemed to be "I want life in excess in the West", more of "I'm a doctor WTF am I doing, and this bureacracy is just asinine." Certainly wasn't what I expected, I'd definitely suggest that one as well.
As for not being published...I doubt you're going to be able to build a bioweapon from reading either book, but it certainly does highlight how the USSR completely ignored the Bioweapons treaty. Of that there is most certainly no doubt.
And regarding Wikileaks...my only argument there, as with any publication that does the same, is that they're knowingly and willingly participating in a felony. The Army guy deserves everything he gets for violating the non-disclosure agreement he signed. Doesn't mean I don't read such things, or even understand the "why" in some cases, but it does mean that, given my own experience with such security regulations, I have zero sympathy when the leakers get caught.