In Brazil, frustration over cost of living undermines Lula's reelection bid
By Brendan O'Boyle, Lais Morais and Marcela AyresFrom the butcher's shop where he works near Sao Paulo's historic center, Kleyton Zacarioto says customer traffic has been slowing for years thanks, he says, to a long period of rising food prices.The prolonged squeeze on household budgets has turned…