Selfishness and greed have been our tools of survival from the very beginning, ever since our earliest forebears climbed down from the trees and set off across the savannah in search of God. Evolution has given us an instinct that is as crucial to our survival as fear or sex but, in the third millennium, greed has become out of control. The world's most expensive sandwich costs GBP85. A failed banker is given a pension fund approaching GBP700,000 a year. A sacked national football coach waiting out his contract earns GBP13,000 a day. Spanning across a whole range of issues including obesity, American evangelism, the Iraq war and GM food, "Greed" is not just a lament for lost innocence or an assault on the fat cats - it's also a celebration of all that greed has prompted us to achieve and what should be possible for us in the future.