The notoriously inefficient development-assistance complex is under siege.

President Obama sends a message to those celebrating the holiday of Nowruz.

Moammar Gadhafi vowed a "long war" against the international military force that struck at his forces with airstrikes and dozens of cruise missiles that shook the Libyan capital early Sunday with the sound of explosions and anti-aircraft fire. (March 20)

Libyan leader Muammar Gaddafi says airstrikes on Libya by Western countries amounted to terrorism and said he would defeat his enemies.

After an international summit on Libya on France, President Sarkozy says action against Libya has begun. Deborah Lutterbeck reports.

US Secretary of State Hillary Clinton has called on the Libyan leader Muammar Gaddafi to obey international sanctions or face serious consequences.

The cleanup is still nowhere near finished in Chernobyl, 25 years after the world's worst nuclear accident. And, as Bill Plante reports, Chernobyl concerned just one rogue reactor, while Japan is struggling to control six.

Allied forces continue to enforce the U.N.'s "no fly" zone over Libya as Qaddafi supporters hold an angry funeral for the innocent civilians lost in the first assault in Operation Odyssey Dawn.

Bob Schieffer spoke with Sen. Richard Luger, the top republican of the foreign relations committee, on the U.S. involvement in the assault on Libya.

Bob Schieffer spoke with Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, on the assault on Libya including the goals of Operation Odyssey Dawn and what lies ahead for Qaddafi and his forces.

A look at the Libyan rebels that the coalition is fighting to protect.

In the aftermath of natural disaster, basic necessities have become scarce.

During a visit to a Rio de Janeiro slum, President Barack Obama joined a group of children as they kicked around soccer balls. (March 20)

Council on Foreign Relations Senior Fellow for Global Health Laurie Garrett criticizes NRC chair for sowing panic when he said Japan is understating health risks.

Is the U.S. mission clear in Libya?  

Egyptians have strongly backed constitutional changes in a vote that paves the way for elections that may come as early as September.

The United States stands ready to act as part of a coalition against Qaddafi.