Associated Press: Two years of heat and little rain already have drained Oklahoma agriculture, including a cotton field near Pocasset, above, of more than $1.1 billion in direct losses. The ongoing drought is creating a "sense of despair" in the region, says Ryan McMullen, state director of USDA rural development, much like when landowners abandoned their property in places like Guymon, Okla., in 1937 during the Dust Bowl, top. (Sue Ogrocki, Associated Press (above); AP file (top)) FREDERICK, Okla. -- When Kent Walker...