The authors of a new study are calling for major changes in hospital residency programs. An article published in the latest online journal Nature and Science of Sleep says resident fatigue, overwork and lack of supervision lead to serious, preventable medical errors. One recommendation is that all medical residents should work no more than 16 hours without sleep. The recommendations are not new but critics say they haven’t been implemented.  But change is not easy, according Dr. Kevin Kavanaugh of Somerset. The longtime proponent of healthcare reform says any changes must be made carefully.

President Obama's nominee to head the CIA was on Capitol Hill Thursday for a confirmation hearing. The Senate Intelligence Committee asked Gen. David Petraeus about many things, including Obama's decision to withdraw troops from Afghanistan. Petreaus also told the panel that to do the CIA job properly, he would retire from the Army.

The U.S. Agency for International Development is going to have to do more with less as it faces serious budget cuts. USAID Administrator Rajiv Shah talks to Renee Montagne about what the troop drawdown in Afghanistan will mean for U.S. assistance for Afghanistan.

China is making its presence known at this year's Paris Air Show. It is the premier event for those who make and buy aircraft. And China is there as one of the world's largest purchaser of jetliners. It is also trying to make its mark as a manufacturer. Eleanor Beardsley reports.

The U.S. Supreme Court handed the pharmaceutical industry two major victories on Thursday.

The Obama administration has set a hard deadline of August 2 for Congress to come up with a deal and pass it into law. But the parties hit a stalemate on the issue of taxes.

Renee Montagne has the Last Word in business.

The Obama administration announced it will release 30 million barrels from the nation's strategic petroleum reserve. The move was coordinated with members of the International Energy Agency to offset supply disruptions from Libya's civil war.

It's the 25th anniversary of Pixar Animation and the studio is marking the occasion with a new Cars film. The original came out five years ago and was very successful. Cars 2 is so close to the heart of John Lasseter that he carved out time from being the creative czar of both Pixar and Disney animation to direct it himself.

Steve Inskeep has business news.