On Morning Edition this week we looked at "What's Making Americans Less Thirsty for Gasoline?"

Now let's examine another important question: "If our demand for gasoline is falling, why are prices in the U.S. rising?"

Mitt Romney has an impressive victory in Illinois, gets Jeb Bush's backing, revives the inevitability argument and then gets bogged down in an Etch A Sketch distraction. Plus: Illinois primary results, and Barbara Mikulski breaks a record. NPR's Ken Rudin and Ron Elving have this week's political roundup.

Martin Killgallon, marketing director for Ohio Arts, we salute you:

"We have a left knob and a right knob," he said of his company's Etch A Sketch, The Associated Press reports, "so we neutrally speak to both parties."

This interview was originally broadcast on November 23, 2011.

Nicholas Stoller made his directorial debut with the raunchy 2008 comedy Forgetting Sarah Marshall, which starred Jason Segel as a guy who had to reassess his life after his girlfriend of five years dumped him.

Segel famously dropped his towel in the opening scenes of the film, which led The New York Times to call him "a young actor with nothing to hide."

There's a new explanation for why the citizens of Clintonville, Wis., have been hearing booms this week:

There was a 0.9 percent drop in sales of existing homes in February from January, the National Association of Realtors reports. But, at an annualized rate of 4.59 million they were still up 8.8 percent from February 2011.

"The market is trending up unevenly," NAR chief economist Lawarence Yun concludes in a statement from the association.

President Obama will nominate Dartmouth College president, Jim Yong Kim, to head the World Bank. A physician and anthropologist by training and global-health expert, Kim's background makes him an out-of-the-box choice. He would become the first Asian American to head the important international funding organization.