Anchor Lisa Mullins speaks with some American researchers in Antarctica who witnessed the historic inauguration in Washington from afar. They are at Rothera Research Station, which is the answer to our Geo Quiz today.

Reporter Jessica Golloher reports on the shooting death of a top Russian human rights lawyer in Moscow. He represented the family of a Chechen girl murdered by a Russian military officer.

The heat is back on in Ukraine. Residents there were without gas for nearly three weeks after Russia turned off the taps to the Ukraine in a dispute over pricing. The World's Gerry Hadden tells us a agreement has now been reached.

Our daily geography puzzler.

Anchor Lisa Mullins talks with linguistics professor Mark Liberman about Barack Obama's inauguration speech. Liberman is one of the co-founders of "Language Log," a website where linguists blog about language in the media and popular culture.

Anchor Lisa Mullins speaks with a number of international journalists and government officials about the significance of the Obama presidency in their home country.

Barack Obama has promised to close the detention center at Guantánamo Bay. But the question remains as to what will happen to the accused terrorists still awaiting a trial. Anchor Lisa Mullins speaks with the BBC's Jonathan Beale at the Guantánamo Bay Naval Base.

Katy Clark's Guantánamo stories (June 2008)

The World's Quil Lawrence has the latest from Gaza. Today UN leader Ban-Ki Moon visited the Gaza Strip and expressed shock and anger at the devastation of the area.

Gaza conflict

The World's Jason Margolis reports on the pressure for the new president to enact some of the change he wants to bring about in Washington in the first 100 days of his administration.

Anchor Lisa Mullins speaks with foreign policy experts about President Obama's inaugural speech -- and the clues it offers to the new president's foreign policy.

Discuss the challenges for the new Obama administration