Good morning. I'm Renee Montagne. Aspiring high school mathematicians gathered in New York for March Mathness. Even for kids who don't love sports, the professor leading the event told The Times there are a billion reasons to love brackets this year: Warren Buffett's reward for picking the winners for all 67 NCAA games. The math geeks are hoping linear algebra and complex computer codes will help them beat the odds: 9.2 quintrillion to one. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.
Let's talk more about changes to the National Security Agency that President Obama is announcing as we speak at the Justice Department. And we're joined in our studio by Tamara Keith and Tom Gjelten. And let's just begin.
Tom, you told us earlier today that technology companies wanted greater transparency. They want the public to know more about what the NSA is doing. What is the president proposing today?