In the re-creation of combat situations and this is coming from a director who's never been in one being mindful of what these veterans have actually gone through you find that the biggest concern is that you don't look at war as a geopolitical endeavor.
When war comes two things happen – profits go way way up and all perishables go way way down. There becomes a market for them.
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As for charity it is a matter in which the immediate effect on the persons directly concerned and the ultimate consequence to the general good are apt to be at complete war with one another.