A bit earlier, I spoke with Brian Williams who made his 3rd trip to Baghdad today.  He will be covering the troop surge from Iraq all week.  Tonight Brian and NBC's Tom Aspell have more on the latest effort by U.S. troops to beef up security by moving into Sadr City.  Brian will anchor Nightly News from Iraq each night this week... and you can find out more about his trip by looking here in the "Daily Nightly" blog.

Plus, we'll tell you about a soldier serving in Iraq who is back home facing a tragedy tonight.  NBC's Kerry Sanders has that story.

Also, the battle in the Democratic Party between Hillary Clinton and Barak Obama…  The two candidates spoke today in Selma Alabama on the anniversary of Bloody Sunday. NBC's Andrea Mitchell reports.

NBC's John Yang is following the Republican candidates... and tells us about Rudy Giuliani's surge in the polls.

We will talk to CNBC's Maria Bartiromo about the economy and what's expected when the markets open tomorrow.

And we'll find out how YouTube is changing the way police search for suspects. NBC's Michael Okwu reports.

It's all coming up tonight.  We hope to see you then.