June 18, 2019: Rep. Schiff On Iran; Effects Of Vaping On Cardiovascular Health

The use of vape pens, electronic cigarettes and other "electronic nicotine delivery systems" has exploded over the last decade or so, especially among teenagers. But compared with traditional cigarettes, there's very little research on the public health effects of this booming industry. Here & Now visits the lab of Dr. Daniel Conklin, an FDA-funded researcher at the University of Louisville who is studying the effects of vaping on cardiovascular health.