Bush: U.S. must remain vigilant against terrorists

WASHINGTON - In his final radio address as president, George W. Bush reminded the nation Saturday that it still faces a serious threat from enemies that are patient and determined to strike again.

Bush urged Americans not to become complacent just because the attacks of Sept. 11, 2001, are fading from memory. "We must keep our resolve, and we must never let down our guard," he said.

At the same time, the United States must not isolate itself or retreat from the rest of the world, said Bush, who added, "I will depart office proud of my administration's record."

After the inauguration, the Bushes will fly to Midland, Texas, for a welcome home rally, and then to their ranch in Crawford.