Zack Polanski is trying to fool the country into banning racing. But the Grand National proved why he must be stopped from blowing a £4.1bn hole in the economy, writes DOMINIC KING

DOMINIC KING AT AINTREE RACECOURSE: There is a world that Zack Polanski envisages in which none of this would have occurred. No joy, no history, no opportunity to say 'I was there'.