This is MORNING EDITION from NPR News. I'm Renee Montagne.
DAVID GREENE, HOST:
And I'm David Greene. We have learned this morning that North Korea has agreed to a moratorium on nuclear tests and uranium enrichment activities. This is according to State Department officials just back from a trip to China, where they met with North Korean negotiators. NPR's Michele Kelemen has more on what could be a step towards reviving nuclear disarmament talks.
In what could be a diplomatic breakthrough, the United States said today that North Korea had agreed to cease nuclear weapons tests and enrichment and will allow U.N. inspectors to verify activities at its main reactor.
The announcement comes just two months after the country's leader Kim Jong Il died and the Communist Party handed the reins of power to his son Kim Jong Un. The AP reports that the agreement also includes a moratorium on long-range missile tests.
They call it "Ball's Pyramid." It's what's left of an old volcano that emerged from the sea about 7 million years ago. A British naval officer named Ball was the first European to see it in 1788. It sits off Australia, in the South Pacific. It is extremely narrow, 1,844 feet high, and it sits alone.
Media baron Rupert Murdoch's son James, 39, is leaving his job as executive chairman of News Corp.'s newspaper arm, the company said Wednesday. He'll focus instead on the international TV business at the company, which has been embroiled in a scandal over phone and e-mail hacking in Britain.
Concussions affect the thinking of teenagers more than they do that of adults or children, according to a new study. But all three age groups show lasting problems with working memory after sports concussions.
During the last three months of the year, the U.S. economy picked up its pace of growth. The Commerce Department revised its previous estimate today and said the gross domestic product expanded at an annual rate of 3 percent, which exceeded the previous estimate of 2.8 percent and was better than the third quarter's 1.8 percent pace.
The AP reports:
"The growth estimate was revised up because consumers spent more than first thought, and businesses cut spending by much less.