Having read Beason and Anderson's other books with the same characters, I found "Lethal Exposure" a bit of a dissapointment. While the characters were fairly well developed, and the idea had merit, the actual execution left something to be desired.
For instance I did not believe for one minute that Baretti could be that clueless as to the Indian's true motives. I had it figured out as soon as they sat down to talk the first time.
As another example, Kriedent should have been able to discern the cause of the explosion a lot sooner than he did. He had all the clues and specialized knowledge in front of him. Why it took me 3/4s of the book to figure out is beyond me. Again This was so obvious that it was practially shoved in the reader's face and I was able to determine the cause when they first met Dumenco and learned what he was working on.
All in all I'd give this book a read, if you are on a plane and there is nothing else to read. Otherwise skip it.