Columbia School of Arts Dean Carol Becker speaking with visual artist and filmmaker Shirin Neshat about her work, specifically her recent film "Women Without Men."

A three-person panel discusses how 9/11 sparked a greater movement of volunteerism across the United States and led to President Obama's declaration of Sept. 11 as a National Day of Service.

Musician Michael Fitzpatrick calls out for compassion and world peace with his cello. He shares his music and discusses the power of good vibrations with Rabbi Irwin Kula.

Claudia Bernardi, artist, printmaker and human rights activist presents samples of her work and has a conversation with award winning journalist and author, Mark Danner as part of Anna Deavere Smith's colloquium on borders, Bodies on the Line.

9/11 Memorial architect Michael Arad details what inspired him to design a national tribute to the nearly 3,000 people killed in the World Trade Center terror attacks.

with Molly Katz and Steve Stern

Alan Alda moderates as leading physicists Lisa Randall (Harvard) and Michael Tuts (Columbia), join CERN's Emma Sanders to explain new science coming from the Large Hadron Collider in Geneva, Switzerland. In particular, they share details of the ATLAS Experiment.

David Rohde, a two-time Pulitzer prize winning reporter for The New York Times, has covered conflicts in Afghanistan, Bosnia, Iraq, and other countries. For seven months he was held captive by the Taliban before escaping.

Vice Present of Content for WNET.org Stephen Segaller speaks with author and associate editor of Britain's Observor, Robert McCrum. McCrum's new book traces the spread of English as the language of global capitalism.

Together artist Michael Joaquin Grey and astrobiologist Chris Impey construct an organism and a conversation using ZOOB, a building toy designed by Grey and inspired by biological and social networks.