Are you living near a methamphetamine lab but don't know it? Each year, thousands of children are exposed to the hazardous chemicals carelessly mishandled by brewers of this addictive, psychoactive substance. Illegal and highly explosive methamphetamine labs have grown in number, with more than 11,000 seized in 2012. In the past decade, their numbers doubled within just a two-year period. The behavior of individuals or the ramshackle looks of a suspicious location might give cause for concern, but these signs are clearer: unusual odor like ammonia or ether (think cat urine or rotten eggs); blackened or covered windows; strange ventilation systems and contraptions; elaborate security ("keep out" signs, guard dogs, video cameras, etc.) to warn off trespassers; dead vegetation from dumping chemicals; and large garbage bags of assorted paraphernalia related to lab equipment, clothing, plastic bottles, etc. If you suspect illegal drug lab activity is occurring, contact your local law enforcement agency or the Anonymous Meth Hotline 1-888-609-6384.