Youth e-cigarette data prompts new calls to speed regulation

By Toni Clarke WASHINGTON (Reuters) - Public health advocates are stepping up pressure on the U.S. government to quickly regulate and restrict access to e-cigarettes after new data showed use of the products tripled among high school and middle school children last year. The figures released by the Centers for Disease Control and Prevention on Thursday raised concern among health officials who fear e-cigarettes will create a new generation of nicotine addicts who may eventually smoke conventiona