No more Mr. Nice Guy. That was essentially what President Obama told Tom Joyner, the black-radio megahost, to expect at upcoming presidential debates.

On Wednesday, the president explained that his main mistake at last week's debate with Republican challenger Mitt Romney was an excess of gentility.

Obama's self-critique, such as it was, came in response to a Joyner question:

The Supreme Court heard oral arguments Wednesday in Fisher v. University of Texas, a case that could put an end to policies that take race into account in college admissions decisions.

NPR's All Things Considered recently asked listeners if there is still a place for affirmative action policies in America today. Below are just a few responses from among the more than 50 received.

'Still A Need'

Two Americans have won the 2012 Nobel Prize in Chemistry. Robert Lefkowitz and Brian Koblika were awarded the prize for their work on protein receptors that tell cells what's going on around the human body. Their research has allowed drug makers to develop medication with fewer side effects. The pair with share the $1.2 million award.

Canada is not used to high profile spy cases. But today there is news that the country has tried its first successful case using the Security of Information Act. And it's quite the case.

The CBC reports that a Navy sub lieutenant pleaded guilty to selling secrets to Russia. Canadian Forces Sub-Lt. Jeffrey Paul Delisle, the CBC reports, simply walked into the Russian Embassy in Ottawa and offered to work for them.

JP Morgan Chase CEO Jamie Dimon, wearing a dark suit possibly made of sackcloth, didn't hold back when discussing the derivative trades that led to massive losses for his company.

"We made a stupid error," he said before a lunchtime audience at the Council on Foreign Relations in Washington on Wednesday. "We screwed up."

Then he got more specific: "I should have caught it ... I didn't."

The company estimates it lost $5.8 billion, thanks to a London-based trader, nicknamed the "London whale," who took large, risky positions in credit derivatives.

The Romney campaign is putting more meat on the bones of its defense policy, and the result is a muscular, almost hawkish posture.

Dov Zakheim, Mitt Romney's special adviser for foreign policy and national security, went toe-to-toe with Richard Verma, who plays a similar role for the Obama campaign, at a forum Wednesday.

The two tussled for over an hour in a foreign policy debate of sorts at a Washington, D.C., hotel.

This week on Valley Writers Read, host Franz Weinschenk shares his fascinating memoir titled "Brooklyn." We'll hear about his family fleeing Germany as Jewish refugees before World War Two, eventually settling in Brooklyn, N.Y.

In 2006, Roger Arias went into his garage searching for a long-lost treasure. He remembered a story about his grandmother and a Spanish translation of "The Star-Spangled Banner."

"I dug through my boxes and sure enough, there was a folder," he says. "It said 'The National Anthem,' and she had version 1 through 10. She kept every one of them."