In tonight’s second installment, New York Times columnist Nicholas Kristof continues his globe-trotting travels, usually with empathic celebrities, to shine a spotlight on not only social problems around the world, but possible solutions. Jennifer Garner goes to her native West Virginia to highlight a reading program for poor children; Alfre Woodard examines poverty conditions in Haiti; and in the slums of Colombia, Eva Longoria visits pregnant teens and young mothers. Check local listings.