Yesterday the Senate voted "no" -- by one vote -- on a move that would have allowed the confirmation of Chuck Hagel as Defense Secretary. Steven Dennis, White House corespondent for CQ/Roll Call, discusses why Republicans are delaying the vote, and what next week may hold.

Bill Thompson, former NYC Comptroller and the 2009 Democratic candidate for mayor, talks to Brian Lehrer about why he's running again and his plan for New York City.

Sampson Davis, New Jersey-based board certified emergency medicine physician, founder of the Three Doctors Foundation, and the author of The Pact and Living and Dying in Brick City: An E.R. Doctor Returns Home (Spiegel & Grau, 2013),  talks about growing up in and working as an ER doctor in Newark and what it taught him about healthcare in America.

What's the 2nd amendment have to do with the 1st? Jim Sleeper, author and lecturer in political science at Yale University, argues in his recent writing that the debate over gun violence should also include a debate over violent speech and media.

"Gun control comes first. But we're not going to get there until we also talk about violent culture." -- Jim Sleeper wny.cc/VkQVAm

— Brian Lehrer Show (@BrianLehrer) February 15, 2013

Chris Bonanos, senior editor at New York Magazine, looks at the pros and cons of a proposal from Mayor Bloomberg to ban polystyrene packaging -- generally referred to as styrofoam -- from New York City.

"If you are choosing between a foam cup and a paper cup, the foam cup probably has less of an environmental impact." wny.cc/11KJyYe

— Brian Lehrer Show (@BrianLehrer) February 15, 2013

Chris Anderson, CEO of 3D Robotics and former editor of Wired, discusses his drone company and cross-border labor issues. Plus: a follow-up on 3D printing, which got a mention during President Obama's State of the Union speech this week.