What's Next: Dec. 18, 2006

Annan to Bid Adieu United Nations chief's farewell Kofi Annan makes his last major speech as Secretary-General this week in Missouri. (Ban Ki-Moon takes over on Jan. 1.) The topic: the need for accountability in U.S. foreign policy.

Rethinking History Iran calls Holocaust conference Holocaust skeptic and Iranian Prez Mahmoud Ahmadinejad has invited scholars from 30 nations to a conference this week in Tehran to debate issues like whether the Nazis used gas chambers.

Diana Whodunit New report on Princess's demise Former London police chief John Stevens will release the results this week of a three-year British inquiry into Di's death. The inquest used cutting-edge technology to reconstruct the crash.

Happy Feet? Athletes to run in Antarctica It's nearly summer there, but still--competitors in the Antarctic Ice Marathon, the world's southernmost 26.2-mile race, will brave the frigid foothills of the Ellsworth Mountains this week.

One, Two ... Audubon's 107th bird census Get your binoculars ready. More than 50,000 observers will fan out across the Americas on Dec. 14, following specified routes and counting every bird they see or hear.