How long does it take for enemies to become allies, and allies to become enemies?
On July 3 in Hanoi, U.S. Secretary of State Hillary Rodham Clinton celebrated the 20th anniversary of that country's Fulbright exchange program, which has involved 8,000 American and Vietnamese students, scholars, educators and businesspeople.
Reading her talk reminded me of a day 42 years ago when I flew over the Ho Chi Minh trail in Laos in the back of a two-seater forward air control plane. The pilot, a U.S. Air Force officer flying out of uniform in an unacknowledged operation, was trying to find North Vietnamese or Viet Cong troops or their base camps and target them for the Royal Lao Air Force planes that were circling in the area.
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