From PRI, Public Radio International and KCRW Santa Monica, this is To the Point.

Barack Obama and tough love for Africa.

Hello again, I'm Orman Alney, and this is To the Poet from Public Radio International.

A daily look at the issues Americans care about most.

On his last day in Italy, the president told African diplomats the legacy of colonialism is no excuse for their lack of prosperous democracies.

Then he headed for sub-Saharan Africa, where he'll bypass the undeveloped politically unstable countries of Nigeria and Kenya birthplace of his father.

He'll go to Ghana with its growing economy

and recent history of peaceful transitions of power. Why is he going? How was he likely to be

received? What's the best way for the developed world to help a troubled continent? On reporter's

notebook later on, Rhesus Monkeys and The Fountain of Youth.

First, here's the news.

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whose contributors include the Ford Foundation,

the John D. and Catherine T. MacArthur Foundation,

and the Skoll Foundation, supporting social entrepreneurs around the world,

uncommon heroes dedicated to the common good. Learn more at scole.org. Hello again. I'm Armin Alany,

back with To the Poet. Ghana is all dressed up for President Obama's first official visit to sub-Saharan Africa.

Is the rest of the continent ready for tough love? Does international

aid lead to dependence? Can it be structured to help countries help themselves? On reporter's

notebook, Rhesus monkeys live longer when they eat fewer calories, a lot fewer. Will it work for

people? We'll hear about some new research that could be promising. First, this news update,

...