Brian Williams, the anchor of “NBC Nightly News,” will be the moderator of “Meet the Press” this Sunday, taking the place of Tim Russert, who died last Friday, NBC News said.

His guests will be Senator Lindsey Graham, Republican of South Carolina, and Senator Joseph R. Biden Jr., Democrat of Delaware, who were to have been Tim Russert’s guests last Sunday. NBC has not decided on a permanent replacement for Mr. Russert.

This weekend?!?

Soon it will be 150 degrees.

It’s time EVERYONE gets serious about the environment!

National Geographic debuts its Green Guide and makes it easy for you to make some changes and save the planet.