Animal rights (January 8)
Government and religion (January 15)
Sex scandals (January 22)
Professional football (January 29)
Press freedom (February 5)
Sleep deprivation (February 12)
Modernizing the grid (February 19)
Cybersecurity (February 26)
Prosecuting terrorists (March 12)
Tea Party Movement (March 19)
Teen pregnancy (March 26)
Earthquake threat (April 9)
Revising No Child Left Behind (April 16)
Caring for veterans (April 23)
Gridlock in Washington (April 30)
U.S.-China relations (May 7)
Census controversy (May 14)
Campaign finance debates (May 28)
Health-care reform (June 11)
Water shortages (June 18)
Offshore drilling (June 25)
Gangs in the U.S. (July 16)
Financial industry overhaul (July 30)
Homegrown Jihadists (September 3)
Abortion debates (September 10)
Social networking (September 17)
Impact of the internet on thinking (September 24)
Preventing obesity (October 1)
Journalism standards in the internet age (October 8)
States and federalism (October 15)
Animal intelligence (October 22)
Democrats' future (October 29)
U.S.-British relations (November 5)
Blighted cities (November 12)
Death penalty debates (November 19)
Income inequality (December 3)
Preventing bullying (December 10)
Food safety (December 17).
