Drug education has been the misguided effort in public schools to deter students from drug use by teaching students about drugs. As a result, illegal drug use by students in 8th through 12th grades has skyrocketed from 62% in 1991 to a shocking 77% in 2007. The failure of drug education in schools is analogous to the failure of sex education.
This mandate began with the Drug-Free Schools and Communities Act Amendments of 1989. It expanded with the Safe and Drug-Free Schools and Communities Act of 1994, which was folded into the 6th reauthorization of ESEA.
In 2001 Congress passed No Child Left Behind -- the 7th reauthorization of ESEA. Once again, a revised Drug-Free Schools provision was included within the larger bill.
ESEA/NCLB was supposed to be reauthorized in 2006, but Republicans were unable to produce a final bill that year. After Democrats took over Congress, they chose not to negotiate with Bush over education. Instead they simply waited for a Democrat president.