According to the latest Gallup poll, Americans say the war in Iraq, not disaster relief operations, is the most important problem facing the country. However, the percentage that worries about the war is down from 27 percent last month to just 16 percent in September. Gallup says that is the lowest number in a year. Click the box at right to see what else has Americans on edge.
China thinks it will be able to invade Taiwan by 2027 and has developed a technology edge in many key areas—but it is artificial intelligence that may be the decisive factor should conflict erupt, Air Force Secretary Frank Kendall said.