Districts Seek To Put Cork in Drinking at the Prom

High school seniors in Arlington, Texas, will probably think twice about drinking before the prom this year.

"We see the [breath-analysis machine] as a deterrent, and it should be enough," said Charlene Robertson, a spokeswoman for the 54,000-student district. "We don't expect to have problems, because kids know the penalties and they know they're going to get tested."

Arlington is one of only a few districts nationwide requiring all students who attend proms to be tested with breath-analysis devices. But many others have begun keeping the machines on hand to use on a case-by-case basis with prom-goers who appear to be under...