WETA PBS NewsHour July 22, 2010
>> the key question that scientists are trying to figure out is whether oil dispersants in the deep ocean do more harm than good. >> lehrer: ray suarez gets two views on the legal challenges to arizona's immigration law. >> brown: and paul solman examines the housing slump in spain, as he continues his reporting on europe's economic troubles. >> see these four big towers? they are beautiful and they were built just before the crisis so they are empty. >> lehrer: that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: >> this is the engine th...