National News from NPR

Last night a bewildering debate broke out on CNN's Piers Morgan Tonight over video posted online yesterday of a young Barack Obama speaking at a student protest at Harvard Law School more than two decades ago.

The debate focused on whether the new BuzzFeed website or Breitbart.com deserved credit for the scoop.

My bewilderment stemmed from the question of why anyone would consider this video to be a scoop at all.

Cancer may be even more complicated than everybody already thought. And that's why a single tissue sample taken from a single tumor may not be the best way to figure out a course of treatment.

British researchers took multiple samples within kidney tumors (before and after drug treatment) and also got samples from tumors that had spread from the original cancers in four patients.

They performed all kinds of genetic tests, including detailed DNA sequencing, on the cancers and found wide variations in some key traits.

Iran's supreme religious leader Ayatollah Ali Khamenei said he welcomed President Obama's comments that attempted to cool off tensions between the West and Iran.

The Christian Science Monitor calls it an "unprecedented praise."

Those in favor of legalizing marijuana have gained an unlikely ally.

The Associated Press reports that International Atomic Energy Agency officials are concerned that Iran may be trying to cover up evidence related to nuclear weapons. That could fuel the debate over U.S. options for addressing Iran. Host Michel Martin talks with Democratic Senator Richard Blumenthal, who is on the Senate Armed Services Committee.

When over 50,000 pounds of cheese rolled this week into Wisconsin, a state clearly not suffering from cheese shortages, it could only mean one thing: The World Championship Cheese Contest was in town.

The New York Times writes this morning about a retired Pakistani Army brigadier's attempt to reconstruct what happened last May when U.S. Navy Seals killed Osama bin Laden at the al-Qaida leader's hideout in Abbottabad, Pakistan.