American manufacturing jobs are unlikely to be as numerous as in the 1970s because automation has replaced the need for many workers. Here, Rick Ring (left) and Corinne Schmitt-Bries attach a panel at John Deere Dubuque Works in Dubuque, Iowa, last year. (Jessica Reilly/Telegraph Herald via AP) In the 1960s, Lehigh Valley high school graduates had a lot of options.
Manufacturers such as Air Products, Ingersoll Rand and Bethlehem Steel offered well-paying jobs that promised a route to the middle class.
"You would expect to go get a job, get married, have kids, get a pension one day and everyone would […]