National

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MICHEL MARTIN, HOST:

I'm Michel Martin and this is TELL ME MORE from NPR News. Coming up, leaders of the G8 - that's the group of eight highly industrialized nations - are meeting at Camp David this weekend, but they're also joined by the leaders of some emerging African countries who will discuss the issue of food security on the continent. We'll talk more about that in a few minutes.

Journalists have spent many days and millions of words hashing over the news that banking giant JPMorgan Chase lost billions of dollars trading "synthetic" derivatives.

I am one of those journalists who, more or less, can understand what the bank says it was trying to do, i.e., hedge against loan losses. But here's what I have a hard time explaining:

What does this kind of complex trading have to do with the price of eggs?

Part 4 of the TED Radio Hour episode The Power Of Crowds.

American homes are filled with unused prescription drugs. Each year we squirrel away 200 million pounds of pharmaceuticals we don't need anymore, according to some estimates.

Babies! Babies babies! Pregnancy and babies! Babies and pregnancy! Strollers full of babies!

Among the key things to know about what's in the hundreds of pages of evidence and other materials related to the Feb. 26 shooting death of Florida teenager Trayvon Martin, which were released Thursday:

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DAVID GREENE, HOST: