Poll: Most Americans confused about the debt ceiling; How are furloughed federal workers spending their time?; Gov. Brown signs new bills to tackle California's water problems; Volunteers provide water for migrants crossing the Imperial Valley desert; LA schools and iPads: Big promises but where's the research?; Sports Roundup: LA Dodgers, NCAA drama, NBA preseason; Chris's Collection: Batmobile toy; Justice For My Sister' doc examines 'femicide' in Guatemala