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Feb 6, 2014 11:00 AM ET // Larry O'Hanlon
A device that can detect meth in waste waters could help law enforcement stop the cookers, as well as warn waste water treatment plants what's coming down the pipe.
Mar 27, 2013 10:52 AM ET // Tracy Staedter
Trees give us shade and suck CO2 from the atmosphere; now a study finds that trees may reduce crime in cities. ->