Instruct: Classify Amazon reviews into positive or negative sentiment
Query: SCAM

"Greg uses Central Asia Institute as his private ATM machine--that there's no accounting. He has no receipts."As told to Jon Krakauer, a former friend and financial supporter of Greg Mortenson, by one of Mortenson's staffer.Mortenson is a nothing but a complete scam, like Ponzi, Madoff, and all sorts of TV evangelists.This book belongs in fiction; if it weren't so inherently evil in it's destruction of all real humanitarian efforts.