Today, FDA sent a warning letter to JUUL Labs for marketing unauthorized modified risk tobacco products (MRTP) by engaging in labeling, advertising and or other activities directed to consumers, including a presentation given The FDA Just Approved Juul's E Cigarettes. Does That Make Altria Stock a Buy Here? FDA Bans Juul From Selling E Cigarettes in U.S. WSJ Juul Can Breathe After Dodging Full FDA Ban on Flavored E Cigs WIRED