David Autor : (4) " Manufacturing value chains are global. Many U.S.-made goods have foreign components. Slapping on tariffs will raise prices and slow imports, but it will make us poorer and impede growth. " - David Autor " In 1986, the space shuttle Challenger exploded and crashed down to Earth less than two minutes after takeoff. The cause of that crash, it turned out, was an inexpensive rubber O-ring in the booster rocket that had frozen on the launchpad the night before and failed catastrophically moments after takeoff. " - David Autor " If I lose my job at a furniture factory where I’ve worked for decades, no amount of cheaper toys and raincoats at Wal-Mart is going to make me whole again. " - David Autor " History has suggested that the pessimists have been wrong time and time again. " - David Autor