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Since the 2008 presidential campaign, many Washington watchers have advocated for an Obama-Hillary Clinton ticket. New York Times columnist Bill Keller says swapping Biden for the popular Secretary of State is the best way for President Obama to ensure re-election.

Take the number 2. Put 15 zeroes behind it, as Space.com says:

2,000,000,000,000,000

Now, think about the news from this story at that website:

When you think of your orange juice in its infancy, you probably envision neat rows of leafy green citrus trees in Florida or California — Tropicana and other companies' have helped seal that image in our minds.

But the reality is that a lot of our orange juice comes from Brazil — about 14 percent, according to the U.S. Department of Agriculture.

Just before he left office this week, outgoing Mississippi Gov. Haley Barbour (R) issued more than 200 pardons or sentence reductions — including more than a dozen to persons convicted of murder, manslaughter or other death-related crimes. And that has sparked outrage and calls for changes in the law that gives the state's governor such authority.

The list of Barbour's executive orders in the last four days before his departure from office on Tuesday is posted here.

Rick Santorum, Newt Gingrich and Rick Perry all hope to derail Mitt Romney's front-runner status in the South Carolina primary. Former South Carolina Rep. Bob Inglis joins NPR's Ken Rudin for a preview of the Palmetto State primary.

In his book, Justice and the Enemy, British journalist William Shawcross says the Nuremberg trials of Nazi leaders after World War II created a template for the trial of future war crimes. He considers the case of Khalid Sheikh Mohammed, the alleged mastermind of the 9/11 attacks, who's being held in Guantanamo prison and will be tried in a military commission.

In December, Ethiopian troops seized the city of Beledweyne, in Western Somalia, from al-Qaida-linked terrorist group al-Shabab, in an attempt to weaken their influence in the country. The decision to increase international presence in Somalia has raised serious questions among analysts about the effect armed intervention will have on the region.

Social media has become a huge part of how people experience the web. So it's not surprising that Google's move to integrate "personal results" into its web searches — drawing from a user's Google+ profile — wasn't praised by the folks who run rival social networks.

The National Peace Corps Association says it's looking for about 100,000 good volunteers.

They're people who served in the overseas development program at some time in its 50-year history but later lost touch with their former colleagues.

NPCA President Kevin Quigley says there's no complete list of the 200,000 Americans who volunteered for the program, in part because key records were lost during its early days.

"When the agency was in its infancy [in the early 1960s], a lot of systems for tracking former volunteers just didn't exist," Quigley says.

Two months after announcing they were going to take another look at the circumstances surrounding the 1981 death of actress Natalie Wood, authorities in Los Angeles are saying there's "no evidence to suggest that the cause was anything but accidental," the Los Angeles Times reports.