Since first entering the US market in 2007, electronic cigarettes have become increasingly popular, with sales reaching $1.5 billion in 2014. Uncertainties abound about this relatively new technology, ranging from the health effects of this alternative to traditional cigarettes to the threat of injury resulting from fire or explosions caused by e-cigarettes. Last week, the National Fire Protection Association (NFPA) released a report about the increase in fires and explosions from the use of e-cigarettes. By tracking media coverage of fires caused by e-cigarettes, NFPA has determined that these sorts of fires are on the rise. There were 15 incidents...