In 1946, a smallpox outbreak shook Seattle. Citizens lined up at businesses, schools and even churches for the vaccine. Today, the doctors who helped quell the outbreak want everyone vaccinated in case of a terrorist attack. As a combat medic in the Philippine jungles during World War II, David Hurlbut saw his share of horror in broken, bullet-riddled bodies. None of it was worse than the face of smallpox, which he saw on a troop ship coming home to Seattle.