"The first thing you think is where's the edge, where can I make a bit more money, how can I push, push the boundaries. But the point is, you are greedy, you want every little bit of money that you can possibly get because, like I say, that is how you are judged, that is your performance metric" - Tom Hayes , 2013 In the midst of the financial crisis, Tom Hayes and his network of traders and brokers from Wall Street's leading firms set to work engineering...