Drug use in the field or otherwise was most likely situational, in most instances. I haven't seen too many Vietnam combat veterans who have continued to use narcotics, heroin or otherwise. It's unusual. I think once other treatments are available to them and they are using other treatments, any of that stops really quite quickly. That's certainly what I've been told. My experience is that people get off that stuff—
On March 20th, 2019. See this statement in context.