New research and polling show that more and more Americans now doubt a previously unquestioned fact of U.S. life — that going to college is worth it.Paul Tough, a contributing writer for The New York Times Magazine, explains why so many high-school students and their parents are souring on higher education and what it will mean for the country’s future.Guest: Paul Tough, a contributing writer for The New York Times Magazine who has written several books on inequality in education.Background reading: 

• Americans are losing faith in the value of college. Whose fault is that?
• In December, Colby-Sawyer in New Hampshire reduced its tuition to $17,500 a year, from about $46,000. The cut was a recognition that few pay the list price.

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