Bill, it's part of, but quite different than "Why We're in Vietnam" from Hearts in Atlantis.
“The New Lieutenant’s Rap” is from Hearts in Atlantis, to be published by Scribner’s in the fall of 1999. This version, which differs considerably from the one which will appear in the book (it’s longer, for one thing), is offered as a little keepsake—my way of marking twenty-five fruitful (a little too fruitful, some critics would say) years as a novelist and freelance writer. It is limited to no more than 500 copies, each of which has been signed by me and numbered or lettered by Michael Alpert, who has so brilliantly executed all the Philtrum Press books, from The Plant to The Ideal Genuine Man. The printing is my own. So are the mistakes and scratch-outs.
I hope what follows makes you as uncomfortable as it does me.
Stephen King"