Traders - bbc2 now

First of a two-part documentary going inside the fast and fiercely competitive world of financial trading, meeting the men and women who play the markets in big cities around the world. New York-based Karen juggles two sets of twins, a busy social calendar and a $200million hedge fund. Bob has spent more than three decades jostling for position on Chicago's cattle futures trading floor, while London day traders Will and Piers use their expertise to train others in the art of making money from tiny moves in the markets.