Summary: Stories: 1) An Anthropologist Walks Into A Bar And Asks, 'Why Is This Joke Funny?' 2) 'American Dream,' Betrayed By Bad Economic Policy 3) In Warhol's Memory, Soup Cans And Coke Bottles 4) Dressage Enthusiasts Find Romney-Driven Attention A Mixed Blessing 5) Are Recent Heat Waves A Result Of Climate Change? 6) Chavela Vargas, Legendary Ranchera Singer, Dies
