The Guantanamo Bay naval base and the United States still faces major questions

A conference on the causes of Mexican migration.

Brazil's army on Monday sent 700 soldiers to help throw a lifeline to desperate neighborhoods that have been cut off from food, water or help in recovering bodies since mudslides killed at least 655 people. (Jan. 17)

An Egyptian man set himself on fire outside the country's parliament on Monday, in an apparent protest emulating the self-immolation of an unemployed Tunisian man last month that helped trigger a popular uprising. (Jan. 17)

A whistleblowing Swiss banker hands supposed offshore banking secrets to Wikileaks founder Julian Assange at a London news conference on Monday.

Copycat incidents of self-immolation in Egypt and Algeria have sparked fears that the unrest seen in Tunisia could spread.

The political uprising in Tunisia has raised questions about the possibility of similar unrest in other parts of the region, especially after protesters set themselves on fire in Egypt, Algeria, and Mauritania.

Prime Minister Ghannouchi declared on public television that the transition authorities would have "no tolerance" toward people committing acts of violence.

Protesters in Tunis, Tunisia, want the Tunisian constitution revamped

Margaret Warner previews her upcoming reports from Korea as Secretary of State Hillary Clinton urges China to enforce U.N. sanctions against North Korea.

Voters in Southern Sudan look set to separate from the Muslim north in early results from its independence referendum.

A tour of Iran's nuclear sites is going ahead despite many key powers, including Russia, declining Tehran's invitation.

A published report credits a joint U.S.-Israeli effort in developing a computer virus that has delayed Iran's nuclear weapons program.

  Chinese president Hu Jintao calls the dollar-based system 'a product of the past'.