America Has Too Many Teachers : Public-school employees have doubled in 40 years while student enrollment has increased by only 8.5%—and academic results have stagnated.

The Wall Street Journal reports:

Since 1970, the public school workforce has roughly doubled—to 6.4 million from 3.3 million—and two-thirds of those new hires are teachers or teachers' aides. Over the same period, enrollment rose by a tepid 8.5%. Employment has thus grown 11 times faster than enrollment. If we returned to the student-to-staff ratio of 1970, American taxpayers would save about $210 billion annually in personnel costs.

The inefficient sector of the economy.