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Health officials said that they were mistaken about a polio outbreak in Somalia spreading to South Sudan. Despite previous reports, South Sudan has not recorded any polio cases this year. The new information means that the spread of the virus around the Horn of Africa is more limited than previously thought.

Is that a left wag or a right wag? Scientists have previously shown that dogs tend to wag their tails to their right side when they see something friendly, like their owners. But a new study shows that other dogs can actually pick up on these emotional cues.

Senate Republicans have once again blocked President Obama's nominees. Despite a deal in July to let several of the president's picks go through, the rancor has returned with a fresh batch of appointments. Two nominations failed within less than an hour on Thursday, and Democrats may once again threaten to change Senate rules so Republicans can't easily derail another nomination.

Steve Inskeep talks with Shuja Nawaz of the Atlantic Council about recent news out of Pakistan about drones.

A Hallmark Christmas ornament has drawn criticism from people who accuse the greeting card company of political correctness and anti-gay bias. The ornament — a tiny sweater — is decorated with the words "Don we now our FUN apparel!" "Fun" replaces the word "gay" from the line in the Christmas song "Deck the Halls." Hallmark says it was trying to avoid misinterpretation and should never have made the change.

Some hard-liners in Iran are planning a "Grand Day of Death to America" on Monday — the anniversary of the takeover of the U.S. Embassy in 1979. Revolutionary Guards commanders promise the slogan will "echo across the nation."

After focus groups and polls indicated that replacing the vice president with Hillary Clinton wouldn't boost the president's re-election effort, the idea was dropped. Former White House Chief of Staff William Daley says the campaign was simply doing "due diligence."

Using special eye-tracking cameras, researchers at the University of Rochester found that many people can perceive their own bodies moving, even in total darkness. Our minds instinctively fill in images when there aren't any real ones to see.

Mayor Rob Ford has been dogged by reports that he's seen smoking crack cocaine on a video that's now in the hands of police. On Friday, his lawyer challenged authorities to release the video and suggested it was something else — perhaps marijuana or tobacco — his client might have been smoking.

Prime Minister David Cameron says the U.K. could issue Islamic bonds as early as next year. The country is already the biggest Islamic finance center outside the Muslim world, and Islamic financing was used to build the Olympic Village. But most important, the sector is expected to grow threefold globally by 2017.