U of M study to look at safety of e-cigarettes

This Nov. 26, 2013 photo shows Steffani Leifeld exhaling a vapor at the Smokeless Smoking electronic cigarette store in Woodbury, Minn. Stores that sell increasingly popular e-cigarettes are popping up around the Twin Cities, highlighting both a lack of regulation and new state cigarette taxes that went into effect in July, pushing the cost of a pack to about $7.50.