Benazir Bhutto's political party has named her 19-year-old son as its symbolic leader and put her husband, Asif Ali Zardari in charge. Zardari was accused of massive corruption when he served in his wife's cabinet in the 1990s. Anchor Lisa Mullins examines the controversy with Iftikhar Malik, author of the forthcoming book "A History of Pakistan".

Arizona puts a new immigration law into effect tomorrow. It will impose sanctions on employers who knowingly hire illegal immigrants. Rene Gutel of station KJZZ in Phoenix has the story.

The United States has confirmed that North Korea failed to meet a deadline to disclose full details of its nuclear program by the end of the year. The World's Matthew Bell gauges the impact of the missed deadline.

The Chinese government has set air pollution targets to be met by this summer. Anchor Lisa Mullins speaks with The World's Mary Kay Magistad in Beijing about the prospects for athletes to breathe easy during the 2008 Summer Olympics.

More than 120 people have been killed in violence across Kenya. The violence erupted after yesterday's announcement that President Mwai Kibaki had won a fiercely disputed election. Anchor Lisa Mullins speaks with the BBC's Karen Allen in the Kenyan capital, Nairobi.

A joint African-UN force took over peacekeeping duties in the Darfur region of Sudan today. Observers hope this will begin to change the course of a war that has killed 200,000 Sudanese and forced more than two million from their homes. But, as The World's Katy Clark reports, it will take several months before the new force is fully operational.

Alcohol is forbidden by the Koran. That places a heavy burden on Muslim alcoholics. Some in the Arab world are turning to Alcoholics Anonymous to find their own path to sobriety. Correspondent Ben Gilbert reports from Oman.

Anchor Lisa Mullins poses today's Geo Quiz.

Todays' Geo Quiz asked you to identify a Canadian bay where revelers enter the new year by taking a chilly swim. The answer is English Bay, near Vancouver, British Columbia. We hear from some of the people who participated in this year's 88th annual polar bear swim.

The World's Marco Werman highlights one of the best performances of 2007: Scottish-Italian singer Paolo Nutini's poignant version of "What a Wonderful World" at this summer's Live Earth concert.