Experts discuss the revolutions throughout the Middle East,

Libya is in a state of flux and the question the U.S. has to ask is: if Qaddafi's regime doesn't fall anytime soon, are we prepared to be in this for the long haul?

The crisis in Japan presents an opportunity for the country to address many of its fundamental, long-term challenges.

The troubles at the Fukushima power plant will negatively impact efforts to expand the use of nuclear energy in the United States.

Some members of the military in Yemen throw in their support for anti-government protesters dealing a blow to President Saleh as he clings to power. Deborah Lutterbeck reports.

Veterinary experts performed a necropsy Monday on Berlin zoo's celebrity polar bear Knut to try to determine why he died suddenly over the weekend. (March 21)

Japan's automakers and tech firms struggle to resume production, with concerns over the global supply chain growing.

Billionaire investor Warren Buffett says quake is a one-time event that creates buying opportunity, and doesn't change economic future of Japan.

Highlighting humanitarian efforts in Libya, President Obama said Monday in Chile that the U.S. is involved in Libya in co-ordinance with a United Nations resolution and that the transfer of power from the U.S. to allies would happen in days. Obama also spoke about the role of the Arab League in efforts in Libya.

Two U.S. pilots safe after ejecting from F-15 plane.

John McCain on the coalition strikes in Libya and Gaddafi.

Oliver North discusses the fate of the Qaddafi regime.

President Obama talks about Libya objectives during a press conference in Chile.

Coalition forces hit Libya with more than a dozen more cruise missiles in an effort to impose a no-fly zone over the country and stop Moammar Gadhafi's forces from attacking civilians.