Bich Nguyen catches a smallmouth bass at Gavins Point Dam on the Missouri River near Yankton, S.D. North Dakota, South Dakota and Montana, which in the past have brought suits to reduce water being released from dams to boost recreation, once again are battling downstream states facing a severe drought and low water levels that threaten commercial traffic along a 180-mile stretch of the Mississippi River between St. Louis and Cairo, Ill. AP File Photos
