This week, first lady Michelle Obama was doing something she loves to do, talking about nutrition with kids. She hosted the first state dinner for children, welcoming 54 of them and their parents to the White House.
"This is the hottest ticket at the White House, right here, because of all of you," Obama said to the children, who ranged in age from 8 to 12.
Gunmen wearing Afghan police and army uniforms have killed 40 U.S. and NATO troops so far this year, and the top American commander in Afghanistan says there is no single reason — and no simple solution.
Taliban infiltrators, disputes between NATO and Afghan security forces, and even the timing of Ramadan, the Muslim holy month, are all factors, according to Gen. John Allen.
"We think the reasons for these attacks are complex," says Allen, who spoke by video link from Kabul on Thursday. Ten of the American deaths have come in just the past two weeks.
If you own a smartphone or a tablet, there's a good chance that inside the device is tin from Indonesia. Tin is used to make the solder that binds metal parts together. The explosion in demand for smart devices has driven up the demand for tin. But that demand has a human toll.
Reporter Cam Simpson traveled to an Indonesian island where nearly all the country's tin is mined. And a story about what he found was published today in Bloomberg Businessweek. Cam Simpson joins us from the Bloomberg studios in London. Welcome.