We cannot do everything in Africa, but doing nothing is not an option.

But in the end our government usually - not unfailingly - is responsive to the people; and usually - not always - will try to do what is right.

Our democracy is not a product but a continual process. It is preserved not by monuments but deeds. Sometimes it needs refining; sometimes it needs amending; sometimes it needs defending. Always, it needs improving.

We cannot do everything in Africa, but doing nothing is not an option.

A likely source for terrorists seeking to buy or steal nuclear materials is the former Soviet Union.

China's ability to deliver nuclear warheads on American cities is expanding.

The U.S has acquired reservoirs of goodwill around the globe over many years. But it is clear - from polling data and ample anecdotal evidence - that America is losing its allure in much of the world.