Barack Obama

The number of hate groups in the United States continues to rise, says Mark Potok of the Southern Poverty Law Center. Potok discusses how the rhetoric of hate groups has increasingly entered the mainstream in the wake of the nation's changing demographics and the election of President Obama.

Using White House visitor logs, writer Paul Blumenthal dug into negotiations that took place among pharmaceutical lobbying firms, the White House and Congress while the health care bill was being drafted. Blumenthal describes how he used public records to determine who was meeting with whom — and how various interest groups have influenced the debate.

Vogue Magazine film critic John Powers talks about the year in media: the major events, the trending topics and the evolution of social networking.