Former chief economist of the International Monetery Fund, Simon Johnson weighs in on the jittery markets; headlines. (Also, you can see BP's live video feed of cleanup efforts here.)

Stock markets around the world seemed jittery yesterday: The Dow Jones industrials dropped briefly below 10,000 before making up most of their loss. Since a recent high in April, the Dow has dropped nearly 12 percent. What does this number indicate about our economy? Is the market the end-all-be-all measurement of how our economy is doing?

The former Detroit mayor was sentenced yesterday to five years in prison for violating the terms of his probation. Kilpatrick only paid the city a portion of what he owed and then failed to report all of his assets during numerous court hearings. Yesterday Judge David Groner told Kilpatrick he hadn't learned anything during his probation, saying, "most compelling is that you lied to this court, continued to lie after pleading guilty to lying to the court." Noah Ovshinsky, reporter for WDET in Detroit, details the latest.

On the foggy evening of September 16, 1969 the oil barge Florida ran aground off Cape Cod in West Falmouth, Massachusetts. 189,000 gallons of fuel spilled into Buzzards Bay, a major transit route for transporting heating and industrial oil and gasoline. Scientists at the Woods Hole Oceanographic Institution have studied the oil spill extensively and the institution’s research has influenced national standards for cleaning up oil.

We're looking at new research into what happens when people move from impoverished areas for better opportunities. And we want to know from you: When have you moved for the sake of opportunity? How did it affect your life?

Sue Popkin wrote the new book, "Moving to Opportnity: The Story of an American Expeiment to Fight Ghetto Poverty." She joins us along with Lydia Grayson, who took advantage of the "Moving to Opportunity" program to get out of New York City in an effort to find a safer environment for her children.

Hattie McDaniel became the first African-American to win an Academy Award for her role as Mammy, in the 1939 classic, "Gone with the Wind."  The question that's been asked for decades is, "where is her Oscar?" Nobody knows. The award was bequeathed to Howard University's drama department after her death of breast cancer in 1952. Washington Post reporter Josh Freedom du Lac, has been following this story, and he joins us to share his findings.

This month, our friends at Serious Eats are kicking off a new series, in which they look at the most emblematic foods from all fifty of our United States. Their first edition focuses on the Northeast states – from Maine to West Virginia. Subsequent editions, which we’ll be featuring in the coming months, will focus on the rest of the country.

Brian Myers, North Korea analyst joins us with details on the tensions in the Korean Peninsula; headlines.

North and South Korea continued to trade diplomatic blows on Tuesday, with South Korea re-designating the North their "principal enemy," a term that Seoul used to use for Pyonyang, but then retired in 2004. North Korea retaliated by cutting ties with the South, calling southern officials "puppet authorities." Brian Myers, professor of international studies at Dongseo University in South Korea, joins us from the ground with a look at the latest news.

UPresident Obama will send 1200 National Guard Troops to the US/Mexico border, an administration official announced yesterday. The president will also request $500 million for border patrol and law enforcement activities. This comes after demands from both Republicans and Democrats to tighten the Southwest border.

Today, Facebook is announcing a major change to its privacy settings in response to criticism that the site was making personal information too public and the privacy settings to complicated to figure out (Facebook CEO Mark Zuckerberg apologized for this on Monday). The new changes are expected to make it much easier for a user to adjust the settings. But despite the backlash against the social networking site, its fan base is still growing rapidly. Facebook had more than 500 million registered users last month — up from 400 million in September.

As part of our ongoing experiment in sharing personal information online amid this debate about privacy, we're asking a question: What benefit have you gotten from sharing information?

Today, BP will try to pour cement down the leaking well to plug it up and pave it over, but pouring cement 5,000 feet beneath the ocean is a bit more complicated than laying a sidewalk.

For more on the top kill procedure, we're joined by WWL reporter Dave Cohen. And Dr. Peter Clark, a petroleum engineer with the University of Alabama.

Over the past thirty years, the Gulf coast has become home to many Vietnamese Shrimpers. But the Gulf oil spill has put their livelihood in jeopardy.

On yesterday's show, Stanford law professor Deborah Rhode talked about her new book, "The Beauty Bias: The Injustice of Appearance in Life and Law"  and said that "looks are really the last bastion of acceptable bigotry in this culture."

We asked if unattractive people should be protected by law on our show yesterday, and we got an overwhelming number of responses from you. Some listeners agreed with our guest that there should be some kind of protection and others took a more philosophical approach, asking, "what is beauty?"

Author Mark Twain once wrote, “It is no use to keep private information which you can't show off.”  Twain, whose given name was Samuel Clemens, will finally show off his most private information 100 years after his death, with the publication of his autobiography.

Gunfire and rioting have rocked Jamaica's capital after the government agreed to extradite drug kingpin, Christopher Coke. Coke's barricaded streets and wielded weapons, but Mark Shields, Jamaica's former deputy police commisioner, says that violence is winding down. He explains that the police will continue to crack down on gangsters who are protecting the drug lord.

"This is a great, great day for the state of New Jersey," said that state's governor, Chris Christie about the news that his state would host the 2014 Super Bowl. Meanwhile, New Yorkers are saying that the Super Bowl is coming to the "New York area." Sports columnist for Newark's Star-Ledger, Steve Politi, details the news.