Billions pledged at food summit
U.N. officials announced almost $3 billion of emergency aid to help ease the global food crisis on Wednesday, but U.N. chief Ban Ki-moon warned up to $20 billion a year would be needed. "We simply cannot afford to fail," said Mr.-1 Ban at the food security summit in Rome, which is grappling with how to stop the crisis escalating. "Hundreds of millions of people expect no less."