Glenn Reynolds, aka Instapundit, has written a new op-ed piece for the Wall Street Journal in which he points out the real problem with student loans.

What’s Really ‘Immoral’ About Student Loans

Unless Congress acts, interest rates for government subsidized student loans will double to 6.8% from 3.4% on July 1. In May, House Republicans passed a bill that would index rates on new loans to the rate on 10-year Treasurys (currently about 2.6%), plus 2.5 percentage points, with an 8.5% cap. But with little Democratic support in the Senate, that bill is dead in the water.

Most Democrats want to lock the current 3.4% rate in place for two more years while Congress debates a “fairer” solution. Massachusetts Sen. Elizabeth Warren has even proposed letting students borrow directly from the government at the same ultra-low rate that banks currently get on short-term loans from the Federal Reserve—0.75%. She calls the Republican proposal “immoral.”

In the student-loan world, there’s immorality to spare—not in the still historically low interest rates, but in the principal of the thing. Student debt, which recently surpassed the trillion-dollar level in the U.S., is now a major burden on graduates, a burden that is often not offset by increased earnings from a college degree in say, race and gender issues, rather than engineering.

According to an extensive 2012 analysis by the Associated Press of college graduates 25 and younger, 50% are either unemployed or in jobs that don’t require a college degree. Then there are the large numbers who don’t graduate at all. According to the National Student Clearinghouse Research Center, more than 40% of full-time students at four-year institutions fail to graduate within six years. The National Center for Education Statistics reports that almost 75% of community-college students fail to graduate within three years. Those students don’t have degrees, but they often still have debt.