can you take electronic cigarettes on planes Flying with Vape? E-Cigarette Rules Airport & E-cigarettes banned from commercial flights

Another study found no consistent evidence that varenicline, an effective medicine for smoking cessation, was associated with greater odds of depression, neurotic disorder, antidepressant or hypnotic/anxiolytic prescription in people with or without mental disorders (Taylor Reference Taylor and Munaf2020a)

(2012) estimated that, between 1975 and 2000, tobacco control policies in the United States changed smoking behavior and prevented approximately 800,000 lung cancer deaths

Pretty sure it's mentioned in Band of Brothers too

One of the items he carried with him during this time was the cigarette case given to him by Alfred