Should School Districts Drug-Test Teachers?

One could argue that some jobs — painting, writing, being a rock star — are better performed under the influence. But other jobs should clearly be given only to the perpetually sober: we don't want our railroad operators or nuclear-plant employees to be smoking up on the job. So it seems appropriate that U.S. employees in those high-risk positions are routinely subjected to random drug-testing.

But what about people who work in less perilous, if equally unpredictable, environments — say, with children in public schools? Should teachers be randomly drug-tested too? Yes, says Linda Lingle, the Republican governor...