Late last month, students at Wolcott High School in Connecticut were on lockdown. An announcement on the intercom warned of a threatening intruder. Doors were locked and police swooped in with dogs…drug-sniffing dogs as it turned out. But there was no gun-toting maniac roaming the halls. It was a “lockdown intervention drill”… a ruse to clear the halls for a school-wide drug search. The story went largely unreported, but it got the attention of Rick Green, columnist with the Hartford Courant.