From an editorial in the Los Angeles Times on Friday:
Long-awaited federal rules to keep electronic cigarettes out of the hands of children finally arrived last week, and not a moment too soon. Use of the nicotine delivery devices has been growing rapidly among middle- and high-school-aged teens in the last few years.
The rules, in the works since 2010, put the regulation of all tobacco products – including “novel and future” ones – under the authority of the Food and Drug Administration for the first time. This is a profoundly important step in reining in e-cigarettes, a popular product with unknown long-term health effects that has been virtually unsupervised by government until now.
Now, manufacturers will be required to disclose the ingredients in the liquid nicotine used in “vaping” and allow government review of how the devices are made before they can be sold to adults in the United States.
Currently, anything could be lurking inside that liquid. Even without the carcinogenic tar and smoke of regular cigarettes, e-cigarettes still contain nicotine, an addictive substance linked to heart disease.