Wow:

Greg Mortenson, author of Three Cups of Tea and Stones Into Schools, and the founder of the Central Asia Institute, a charity promoting education in Afghanistan, has been accused of mismanaging the charity’s funds and lying about key events portrayed in the books.

Bookpage.com

More here at businessinsider.com and at cbsnews.com with the transcript of the 60 minutes piece, including this quote from author Jon Krakauer (Into the Wild, Into Thin Air, Under the Banner of Heaven):

He's not Bernie Madoff. I mean, let's be clear. He has done a lot of good. He has helped thousands of school kids in Pakistan and Afghanistan....He has become perhaps the world's most effective spokesperson for girls' education in developing countries. And he deserves credit for that...Nevertheless, he is now threatening to bring it all down, to destroy all of it by this fraud and by these lies.

Via blogs.com

Greg Mortenson''s Book of Lies