What Are the Characteristics of the Happy Jobs?

CNN's John Sutter looks at the difference between happy and unhappy jobs. He says clergy, physical therapists are happier than roofers or manual laborers. But waiters and servers don't get to make a lot of choices when they're in those occupations, he says. "I think where we'ud come to agreement is that it's probably partly the objective features of the job," writes Sutter.