Story Highlights
? Authorities say there have been 21 "cheese" deaths in the Dallas area since 2005
? Schools, police have begun campaign to try to stop the drug from spreading
? Middle schoolers cheer after detective says U.S. has the most drug users
? Dad of a teenager who died says: "All it takes is once"
http://www.cnn.com/2007/US/06/12/che...oin/index.html