Facing increasing scrutiny from international and domestic regulators, the Altria Group has decided to write down its investment into the e-cigarette company JUUL by $4.5 billion. That’s roughly one-third of the $12.8 billion that the tobacco giant had invested into JUUL a little less than one year ago. Juul Labs gets $12.8 billion investment from Marlboro maker Altria Group What a difference a year has made. JUUL, which has become synonymous with the vaping phenomenon that has swept the U.S., was once hailed as being at the forefront of a wave of companies that were making smoking obsolete and nicotine consumption safer for consumers. Vaporization Startup Pax Labs Introduces Juul, Its Next-Gen E-Cigarette The company began running into problems as its popularity increased exponentially (in part by allegedly turning to some of the same tactics big tobacco used to target underage consumers ). As the complaints began to roll in, and as JUUL was held responsible fo