Isaac Katongole, 8; his father, Meddie Katongole; and Mr. Katongole's fiancee, Mercy Mbogori, make their way past motorcycles on the Mall. Rolling Thunder, which unites many veterans of the Vietnam War, seeks to bring home POWs and MIAs.

Isaac Katongole, 8; his father, Meddie Katongole; and Mr. Katongole's fiancee, Mercy Mbogori, make their way past motorcycles on the Mall. Rolling Thunder, which unites many veterans of the Vietnam War, seeks to bring home POWs and MIAs.