President Bush used his Saturday morning radio address to tell Americans about his African tour, focusing on the AIDS pandemic, which he called one of the "gravest dangers" the continent has ever faced.

Mr. Bush stressed the importance for Congress to quickly pass legislation releasing $15 billion to fight AIDS over five years. The president said the money will provide preventative and medical services, drugs and education across Africa and in the Caribbean.

President Bush also told his American audience that the United States is committed to supporting democracy, trade and stability in Africa.