Jon Lee Anderson, a writer for a weekly magazine called the New Yorker, got angry on Twitter today. A reader with the Twitter name of Mitch Lake (@mlake9) had tweeted at Anderson (@jonleeanderson) to dispute a claim of fact in Anderson's online story about the death of Venezuelan leader Hugo Chavez. Anderson had written that Chavez had left his country as "one of the world's most oil-rich but socially unequal countries," and Lake countered that in fact Venezuela was the second-least unequal country in the Americas.