Monday's tornado tore through parts of Oklahoma City at 200 miles per hour and killed at least 24 people. Many more are missing orinjured. Guest host Jennifer Ludden talks to KOSU reporter Michael Cross and to meteorologist Paul Douglas about why it's so hard to track tornadoes.

This week on All Songs Considered, hosts Bob Boilen and Robin Hilton offer up a musical sampler of many styles from around the world. There's an upbeat, atmospheric cut with amazing harmonies from the magnetic Laura Mvula, a voice you'll hear a lot more of this year; Firehorse's blazing combination of neo-soul, hip-hop and electronic beats; a heavy, hypnotic track from New York duo Small Multiples and some transfixing psych-pop from Jagwar Ma.

Apple CEO Timothy Cook made a rare appearance on Capitol Hill on Tuesday, testifying after congressional investigators revealed that Apple avoided billions in taxes. Reporter Charles Duhigg of The New York Times and guest host Jennifer Ludden talk about how, as Duhigg writes, "technology giants have taken advantage of tax codes written for an industrial age."

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JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden in Washington. Neal Conan is away. It's graduation season, and that means 20-somethings and parents sitting through long commencement ceremonies while the older and wiser give advice. Here's comedian Stephen Colbert speaking at the University of Virginia.

The National Transportation Safety Board has recommended reducing the legal limit for blood alcohol content for drivers from .08 to .05. Critics say it won't significantly help prevent drunken driving. Guest LZ Granderson argues that without more checkpoints, a lower threshold would do nothing.

Hollywood superstar Angelina Jolie has been in the headlines, by her own choice for a change.

Genetic testing showed she was at high risk for breast cancer, so she decided to have a double mastectomy to improve her odds. She revealed her choice, and the thinking behind it, in a recent op-ed in The New York Times.

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MICHEL MARTIN, HOST:

I'm Michel Martin and this is TELL ME MORE from NPR News. They say it takes a village to raise a child, but maybe you just need a few moms in your corner. Every week, we check in with a diverse group of parents for their common sense and savvy advice.

Today, though, we are talking about a difficult decision that both mothers and daughters face, sometimes together. It's the question of whether to get genetic testing for breast cancer and what to do when you find out that you are at high risk.

We don't need to say much. Just watch this video from The Oklahoman of Trenda Purcell's reunion Monday with her 8-year-old son Kamden, who she found safe and sound after the tornado that swept through Moore, Okla.