CHART: NOT AVAILABLE
CREDIT: From a telephone poll of 1,400 American adults taken for TIME/CNN on Sept. 22-24 by Yankelovich Clancy Shulman. Sampling error is plus or minus 2.5%.
CAPTION: Did U.S. government officials know when the Vietnam war ended that some American prisoners were still in Laos and Vietnam?
Do you believe any American MIAs are still alive in Vietnam?
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