Dawn: Talking about chronic hunger and the unrest it can spark, UN Secretary General Ban Ki-moon called on Saturday for quick action to ensure global food security. The irony, he pointed out, was that ‘there is more than enough food in the world, yet today more than one billion people are hungry.’ The UN chief’s comments on global food insecurity are pertinent to Pakistan, where the compounded problems of food production, distribution and falling purchasing power are already in evidence. …