Extended Interviews: 'Ai Weiwei: According to What?'

More from interviews with Chinese artist Ai Weiwei, Kerry Brougher and Alison Klayman. (4m 17s)

Industrial Residue From Sandy Flood Waters Raise Concerns

Industrial Residue From Receding Sandy Flood Waters Raise Concerns for Residents (5m 33s)

Janet Napolitano Discusses Immigration Agenda

Secretary of Homeland Security Janet Napolitano Discusses Immigration Agenda (7m 27s)

Lawmakers Consider Cutting Tax Deductions to Cut Deficit

Lawmakers Consider Cutting Tax Deductions to Bring Down the Deficit (8m 8s)

Making Work Safety a Priority in Bangladesh Apparel Industry

Making Work Safety a Priority in Clothing Industry in Pakistan and Bangladesh (5m 4s)

Michigan 'Right-to-Work' Laws Spark Debate on Labor Unions

Michigan 'Right-to-Work' Laws Spark Heated Debate on Role of Labor Unions (11m 46s)

Obama Makes Tax Hike Appeal in Detroit After Budget Talks

Obama Makes Tax Hike Appeal in Detroit After Weekend Closed-Door Budget Talks (6m 36s)

Paul Salopek Aims to Walk Around the Globe in 7-year Journey

Paul Salopek Aims to Complete a 'Walk Through Time' Around the Globe in 7-year Journey (6m 9s)

Paul Salopek Answers Viewer Questions About 'Eden Walk'

Paul Salopek Answers Viewer Questions About 'Eden Walk' (2m 54s)

Weekly Poem: Sally Keith Reads 'Providence'

Sally Keith reads "Providence'," a poem from her recent book, "The Fact of the Matter." (1m 11s)