At an event on Friday the Mayor of New York City put his foot in his mouth…again. Michael Bloomberg attempted to give mediocre high school students some advice: skip college and become plumbers. He said students who were not above average should learn how to be plumbers instead of reaching for a career that would involve going to a prestigious college and obtaining a degree. The people who are going to have the biggest problem are college graduates who aren’t rocket scientists, if you will, not at the top of their class. Compare a plumber to going to Harvard...