Susan,
Great article! In my opinion, the lack of higher education would be an even greater threat to the US economy than high levels of student debt. People are the ultimate economic resource for driving growth. Investing in a college education pays dividends throughout your lifetime and can dramatically change the world for the better. For more information on the "Economic Value of College Majors" see Georgetown's Center on Education and the Workforce at https://cew.georgetown.edu
Bob