Kojo talks with WAMU reporters Patrick Madden and Julie Patel about their investigative series detailing the influence of money in D.C. politics and public policy.

After years of research, an animal scientist looking for ways to keep inflammation down in cattle came up with a novel approach: feed them flax. The flax in their food helps keep animals healthy and has an added benefit for people who later eat their meat: omega-3 enriched beef.

Millennials are now driving less, waiting longer to get licensed, and turning more to public transportation and car-sharing. So is America's so-called driving boom over? Guest host Celeste Headlee asks Paul Eisenstein of TheDetroitBureau.com.

African-American entrepreneurs from all over the country have gathered in Ohio this week. Guest host Celeste Headlee speaks with Mike Green of the America21 Project about how to help black youth become more competitive in business. We also hear from teen entrepreneur Amber Liggett who started her own business, 'Amber's Amazing Animal Balloons.'

Also: AARP and The Nation join a growing list of ebook publishers; Hilary Mantel on Jane Austen; Anne Applebaum on Sheryl Sandberg.

On Thursday, President Obama named Daniel Werfel, 42, acting IRS commissioner. The announcement comes a day after the resignation of Steven Miller, who got caught up in the controversy over the IRS targeting Tea Party groups.

A 79 percent drop in earnings — That's what the computer maker reported to investors Thursday. The reason, analysts say, it's harder to sell PCs these days with the growing popularity of smartphones and tablets