The U.S. Centers for Disease Control and Prevention is out with a false advertisement telling kids that “Nicotine in e-cigarettes can harm brain development.” The headline says, “It’s not like you can buy a new brain.” To make it accurate, I’ve added “…for your pet mouse.”

Let me be crystal clear. The harm in brain development federal officials talk non-stop about only happens in laboratory torture of mice. Mouse studies are well known to be of questionable value in predicting human effects. There is absolutely no scientific evidence to support the claim that nicotine causes harm to human brain development, [...]