Book did a nice job of covering a sensitive topic that most people are unaware of. Biological weapons are by far some of the most insidious potentially damaging weapons in the modern arsenal. It should not surprise anyone that our government is developing them, just as other governments are doing. Throughout time there has always been an arms race.
As far as Lyme disease being discovered in the mid-70's - that is a popular however untrue myth. Medical literature describes the disease as far back as the late 1800's.