There are reports of multiple gun battles and sniper fire on U.S. troops as they press forward into the Taliban stronghold of Marja in southern Afghanistan. We have the latest from Rod Nordland, New York Times Correspondent in Afghanistan.

The conversation about how to help Hait continues: our guest Michael Clemens says the most inexpensive and effective way to help Haitians would be to let them leave the country. Clemens is research fellow at the Center for Global Development.

The Mississippi-based company Durasip is proposing small fiberglass houses as a solution to the housing crisis in Haiti. The company makes 16' x 20' homes that can be built in a day by two people. We speak with John Pardue, Durasip's sales and marketing director.

We get an update from Vancouver with Boston Globe sports reporter Shira Springer.

The Tea Party is injecting some excitement into a U.S. Senate contest in Arizona. After almost three decades in the seat, Senator John McCain is now facing his most serious challenge yet. Former Congressman-turned talk radio host J. D. Hayworth is officially stepping into the Republican Primary race today. We talk about what's at stake with Dan Nowicki, national political reporter for The Arizona Republic.  We also speak with J.D. Hayworth, from his campaign office in Scottsdale Arizona.

http://www.flickr.com/photos/wbur/sets/72157623316534573/

Ice fishing is a popular winter tradition, and at this time of the season the prize catch is a small, but tasty fish called a smelt. Here and Now's resident chef Kathy Gunst discovered the joys of smelt fishing, and dining, during a recent ice fishing expedition on the Cathance River in Bowdoinham, Maine.

• Dntel, "Last Songs"
• Charles Mingus, "Pedal Point Blues"
• Peter Dixon, "Nagog Woods"
• Christian McBride, "Theme for Kareem"
• Rodrigo and Gabriela, "Logos"