This is the whole book by Robert M. Bloom

Ratting The Use and Abuse of Informants in the American Justice System

http://books.google.com/books?id=BsxTEuUCF...=result#PPP1,M1

The how and the who is just scenery for the public. Keeps 'em guessing, prevents 'em from asking the most important question, Who benefited? Who has the power to cover it up? Who? One may smile and smile and be a villain."

One!