Mar­tin Luth­er King Jr. was not just the safe-for-all-polit­ic­al-stripes civil-rights act­iv­ist he is of­ten por­trayed as today. He was nev­er just the “I Have a Dream” speech. He was an an­ti­war, anti-ma­ter­i­al­ist act­iv­ist whose views on Amer­ic­an power would shock many of the same politi­cians who now scramble to sing his praises.