Marking a Katrina milestoneThe Museum of Fine Arts in Houston and the New Orleans Museum of Art will mark the fifth anniversary of Hurricane Katrina with an exhibit of Katrina photographs by American photographer Richard Misrach. "Richard Misrach: After Katrina" will run through Oct. 31. The photos will then be displayed at the Museum of Modern Art in New York, the National Gallery of Art in Washington, D.C., and the San Francisco Museum of Modern Art.