greg smith, author of the new book "why i left goldman sachs," joined us via skype to detail how goldman bankers went as far as calling clients "muppets," and his other thoughts about wall street. > > "i am a little surprised that the media is not actually asking goldman the hard questions: "are you riping off teachers' pension funds?" "are you selling charities products they don't understand?" and "are you betting against clients?" the answer to all those questions is yes, and unfortunately there has been an element of character assassination going on. > > other than what you wrote in the book about goldman sachs, what else did you want people to know? i know for one thing, this is a firm that is shrouded in secrecy. > > yes, and that's one of the reasons i wrote the book. goldman is a very mysterious place, so i wanted to, in a certain extent, pull back the curtain and show people how goldman and wall street make money - and not just the bad things, the good things and the bad things, because there's certainly a value of wall street to society. but i think if there was one or two messages i would like to leave with your viewer, the