On Wednesday night, Mexico's drug prohibition war spilled into a treatment clinic in Ciudad Juarez. From the article:
"The deed was stomach-turning: Hooded gunmen burst into a Ciudad Juarez drug treatment center, gathered together those inside and lined them up before opening fire with semiautomatic weapons. When the shooting was over, 18 people were dead."
Apparently these clinics have become recruiting centres for organized crime groups:
"Drug-treatment centres in Mexico draw some clients from street gangs that serve as foot soldiers for drug cartels. Gangs often use the facilities as recruiting grounds, creating potential targets for enemies."
The Yahoo! article states this is the third attack on an addiction clinic in Ciudad Juarez.