Maybe the Koch brothers, Charles and David, never viewed themselves as proceeding heedlessly, secretively showering funding on right-wing causes and acquiring an image of shadowy manipulators. But now, Jane Mayer reports in The New Yorker, public relations has gained unaccustomed prominence in the Kochs’ operations. We hate to see PR used this way, belatedly, but better later than never if the Kochs truly intend to play a more benevolent role. Ms. Mayer has produced a fascinating piece on a shadowy duo whose “energy-and-chemical conglomerate Koch Industries…is based in Wichita and has annual revenues of a hundred and fifteen billion dollars.”