60 minutes

In his new book, Flash Boys: A Wall Street Revolt (W.W. Norton & Company, 2014), Michael Lewis, author of   Moneyball and The Big Short, says stock market trading may be rigged by so-called high frequency traders using supercomputers.

Mike Wallace was an institution in the news industry. He interviewed presidents, singers, mobsters and civil rights heroes. He needled them with a sophisticated coolness that only Wallace could. He infuriated some, charmed others and educated us all when we watched his interviews. CBS News' eulogy…