Los Angeles County Sheriff's deputy Jim Phillips, left, detains Federico Valencia after a search warrant at Victor Welding Supply, Co. in Los Angeles Friday, March 22, 2013. A joint

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Los Angeles County Sheriff's deputy Jim Phillips, left, detains Federico Valencia after a search warrant at Victor Welding Supply, Co. in Los Angeles Friday, March 22, 2013. A joint operation dubbed "No Laughing Matter" by the Food and Drug Administration's Office of Criminal Investigations and Los Angeles Sheriffs say the use of nitrous oxide as a recreational drug has grown from a rave phenomenon to mainstream use in recent years propelled by the ease of social media to advertise illegal parties, especially among teenagers. (AP Photo/Damian Dovarganes) less 

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Associated Press
Sat, Mar 23, 2013 3:48 AM EDT