Comms key for both sides as organizations defend themselves against unions' ramped-up campaigns

To the average American, labor unions might seem like a topic solely for old movies: Sally Field as the put-upon factory worker recruited in Norma Rae to organize fellow townfolk, or Marlon Brando as the ex-boxer Terry Malloy in On the Waterfront, who stands up to the corrupt union bosses in expensive clothes who decide who works and when.

Indeed, the percentage of US workers belonging to a ...