Hell has frozen over. Nicholas Kristof admits he is wrong about unions!. - http://www.dailykos.com/story/2015/02/19/1365440/-Hell-has-frozen-over-Nicholas-Kristof-admits-he-is-wrong-about-unions
Nicholas Kristof - https://en.wikipedia.org/wiki/Nicholas_kristof
Income inequality in the United States - https://en.wikipedia.org/wiki/Income_inequality_in_the_United_States