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Xiao Liwu made his public debut Thursday at the San Diego Zoo. Fans crowded around the exhibit, their camera lenses extended, hoping to catch a glimpse of the 5-month-old giant panda cub. If they're lucky and actually do see the 16-pound panda (his Chinese name means "Little Gift"), there'll be much oooing and aaahing.

You'd have to be heartless not to agree that pandas, especially the youngest of them, are as cute as all get-out. Right? But why?

Major League Baseball will expand its effort to fight performance enhancing drugs to include random blood tests for human growth hormone and other substances during the regular season, under the terms of an agreement with the players union that was first reported by

Junior Seau, the former NFL linebacker whose suicide last May at age 43 shocked fans and former teammates, suffered from chronic traumatic encephalopathy, a neurodegenerative disease associated with repetitive head injuries, according to a study by the National Institutes of Health.

Transcript

CELESTE HEADLEE, HOST:

In the heart of the Moroccan oasis and palm grove of Skoura, west of Marrakesh, yellow and reddish dates dangled heavily from branches high above us. It's going to be a good year, a man harvesting dates said, offering me a handful of fresh, still-yellow fruit cut from the tree just moments before.

President Obama nominated Jack Lew, his current chief of staff, for Treasury Secretary today. Former cabinet members explain what it takes to put together a good cabinet, and how to get the members to work together.

Regularly ranked as one of the most corrupt countries in the world, Afghanistan has implemented what for it is a novel new program: selecting provincial and district officials on the basis of their skills, rather than connections.

By all accounts, Afghanistan's corruption is endemic at all levels of government. It's hoped the new effort will begin to curb graft, patronage and nepotism in the country's 34 provinces and roughly 360 districts.