I have been to several wars to draw. I went to Vietnam. And made drawings in Vietnam during that period of the war there, and found that to be a very very sad situation.
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There are two types of courage involved with what I did. When it comes to picking up a rifle, millions of people are capable of doing that, as we see in Iraq or Vietnam. But when it comes to risking their careers, or risking being invited to lunch by the establishment, it turns out that's remarkably rare.