FILE - In this Dec. 23, 2010 file photo, St. Louis County police Officer Clayton Fair, left, arrests a man during a crackdown on illegal purchases of over-the-counter cold medications in Fenton, Mo. The nation's Heartland is ridding itself of the scourge of homemade methamphetamine, with lab seizures down by nearly half in many high-meth states. Any celebration is muted: Meth use remains high, but people are increasingly turning to cheaper, imported Mexican meth rather than making their own. (AP Photo/Jeff Roberson, File)