The Environmental Protection Agency is expected any day now to tighten the standard for how much ozone is safe to breathe, but the level of ozone that scientists say is safe doesn't sit well with industry. The agency decision is sitting at the White House, awaiting approval.

The EPA is redoing the ozone standard set under President George W. Bush. The Bush administration's EPA ignored the advice of its own panel of outside scientific advisers. It set the standard for a healthy level of ozone in the air at 75 parts per billion.

U.S. Secretary of State Hillary Clinton is claiming some modest successes after several days of talks with Asian leaders in Bali, Indonesia. The issues that stood out included territorial disputes in the South China Sea, Myanmar and North Korea.

After three days of talks, Clinton noted that tensions over the South China Sea issue have eased since last year, thanks in part to nonbinding guidelines that China and ASEAN approved Thursday to handle the dispute.

The opening of financial markets in East Asia is causing anxiety in official Washington and beyond. The concern is that a Friday night breakdown in talks between President Obama and House Speaker John Boehner on raising the debt ceiling may have negative repercussions when trading gets under way.

More meetings took place all day Saturday, first at the White House, then at the Capitol, seeking that elusive bipartisan deal.

The man blamed for attacks on Norway's government headquarters and a youth retreat said he was motivated by a desire to bring about a revolution in Norwegian society, his lawyer said Sunday.

Though he told his lawyer that he acted alone, police said Sunday they were conducting an operation in a residential neighborhood of Oslo. Police spokesman Anders Fridenberg would give no other details about the action. Survivors of the massacre have said there were two assailants, and police have said they were looking into those accounts and had not ruled out a second suspect.

Nearly 12 percent of Americans claim some Irish ancestry. Even President Obama has a little Irish in him. But we've got nothing on polar bears.

According to a study in the journal Current Biology, every polar bear alive today can trace its ancestry to one mama bear that lived in Ireland during the last Ice Age. And what's more, she wasn't even a polar bear: She was a brown bear.

In the 1930s, L. Ron Hubbard was a pulp fiction writer, best known for his fantasy and science fiction stories. But after an attempt at Hollywood screenwriting, Hubbard decided to go a different route.

In 1950, he published Dianetics: The Modern Science of Mental Health, a self-help book that became a bestseller and launched a new religion.

That religion was Scientology, and six decades since it began, much is still unclear about the church, its history and its current leader, David Miscavige, who took over shortly after Hubbard's death.

The news may bring us stories of bankrupt symphony orchestras, floundering opera companies and shuttered record stores, but musicians keep making excellent recordings, often releasing them on small labels. That's the thread running through the broad range of classical albums that NPR Music's Tom Huizenga spins for Weekend All Things Considered host Guy Raz. The independent, Paris-based Zig Zag Territories label has released a sparkling new recording of Poulenc's Concerto for Two Pianos with the innovative original instruments band Anima Eterna.

As the world reacts to the horrifying news from Norway, host Guy Raz checks in with James Fallows of The Atlantic about this and the week's other big stories, including President Obama's challenge to House Republican leaders on the nation's debt ceiling.

It's another working weekend for the leaders of Congress as the debt-ceiling clock counts down toward Aug. 2. Host Guy Raz gets the Capitol Hill side of the story from NPR's David Welna.

Although House Speaker John Boehner walked away from debt ceiling negotiations with President Obama Friday night, the two sat down with other congressional leaders again Saturday in another attempt to work out a plan to raise the debt limit. NPR's Ari Shapiro talks with host Guy Raz from the White House about how much progress they did, or didn't, make.