Melissa Block speaks with Washington Post reporter Rajiv Chandrasekaran about Afghan President Hamid Karzai's intention to limit international involvement in anti-corruption investigations. The move could interfere with U.S. efforts to combat graft within the Afghan government.

Fourteen federal departments and agencies, 34 states and more than 200 local governments now encourage or require LEED certification. But a New York apartment building owner says the green-building certification is awarded before energy savings are proved.

For years, trombone player Scott Bean had a cough that wouldn't quit. A doctor later figured out that mold and bacteria living in his trombone caused him to develop a condition that's being called "trombone players' lung."

In Baghdad's version of the show, notable figures are caught on hidden cameras at a security checkpoint and accused of carrying a bomb. The soldiers, the driver and the TV host are all in on the joke. The show is popular, but Iraqi officials aren't amused.

The federal tax rate for U.S. corporations is nearly 40 percent, the second-highest among industrialized nations. Critics say the best way to create jobs would be to lower it. But others say various tax breaks, exemptions and deductions have some paying far lower taxes.

In his latest attempt to help the economy, President Obama is proposing a new round of tax breaks for businesses. But it's unclear whether companies would rush out to take advantage of them. And even if they did, would the incentives really create jobs?

On Tuesday, Chicago mayor Richard Daley announced that he won't seek re-election after more than two decades as mayor. The news was a shock to many Chicagoans. We'll hear what some residents of the Second City think of Daley's legacy.

Melissa Block talks to Boston Globe reporter Farah Stockman about the return of hundreds of antiquities looted from Iraq that wound up in the U.S. after the U.S. invaded Baghdad in 2003. The ancient Mesopotamian relics include a statue of one King Entemena who ruled in 2400 BC.

Melissa Block talks with veteran Chicago reporter Carol Marin about the legacy of Richard M. Daley, and how it compares to that of his father, Richard J. Daley. Marin says both mayors had autocratic styles, but that the son learned from the father. She says when Richard J. Daley leaves the major's office, he leaves behind a physically transformed city, but he also leaves behind a terrible crime problem and schools that haven't been much improved.

Alan Cheuse reviews The Lady Matador's Hotel by Cristina Garcia. The novel weaves the stories of six residents of a hotel in an unnamed Central American capital. One of the guests is a Japanese Mexican-American matadora in town for a bullfight.

Oklahoma State Rep. Rex Duncan has proposed a state constitutional amendment to bar U.S. judges from considering any foreign law, including Islamic law, in their decisions. But U.S. laws already allow for some consideration, and experts say U.S. law will always have the final word.

Secretary of State Hillary Clinton described tensions in Sudan between the North and the South as a "ticking time bomb of enormous consequence." Her comments come ahead of a referendum in which southern Sudanese are widely expected to approve independence for their oil-rich but deeply impoverished and infrastructure-poor region.

BP has released the results of an in-house investigation into the causes of the blowout at its well in Gulf of Mexico on April 20. The report identifies eight separate failures -- either of equipment or human judgment -- that led to the disaster.

You've probably heard a lot about the car Democrats say Republicans drove into a ditch. That's the president's metaphor for the GOP's economic policies. In Cleveland on Wednesday, President Obama laid out the Democrats' economic message for the fall.

Local officials and congressional investigators said BP was shirking responsibility by passing the blame in its internal report of the oil rig explosion in the Gulf. And companies that BP pointed a finger at were quick to point a finger back.