E-cigarettes are "the most popular stop smoking aid in England," according to a recent government report, which says they increase the likelihood of success by about 50 percent and reduce health risks by "at least 95%." The report from Public Health England (PHE) illustrates the continuing contrast between the way British officials talk about vaping and the way their American counterparts do. About 2.5 million people use e-cigarettes in England, PHE says, and 51 percent, or almost 1.3 million, have stopped smoking entirely. [...]