formal FDA approval process, but has not done so to this point. There has been a 78 percent increase in e-cigarette use by U.S. high school students, and 3.6 million high school and middle school students now
use e-cigarettes, according to U.S. Centers for Disease Control and Prevention data released late last year, NBC News reported. A Chinese scientist who said he edited the genes of twins
to protect them against HIV acted on his own and could face punishment, according to investigators in the southern province of Guangdong. They said Dr.