 Housing the Homeless | Dec. 18, 2009 |
| Bilingual Education vs. English Immersion | Dec. 11, 2009 |
| Prisoner Reentry | Dec. 4, 2009 |
| Rewriting History | Dec. 2009 |
| The Value of a College Education | Nov. 20, 2009 |
| Women in the Military | Nov. 13, 2009 |
| Online Privacy (Updated: September 14, 2010) | Nov. 6, 2009 |
| Terrorism and the Internet | Nov. 2009 |
| Human Rights Issues | Oct. 30, 2009 |
| Conspiracy Theories | Oct. 23, 2009 |
| Human Spaceflight | Oct. 16, 2009 |
| Medication Abuse | Oct. 9, 2009 |
| Nuclear Disarmament (Updated: December 10, 2010) | Oct. 2, 2009 |
| Rescuing Children | Oct. 2009 |
| Interrogating the CIA | Sep. 25, 2009 |
| Gays in the Military (Updated: October 15, 2010) | Sep. 18, 2009 |
| State Budget Crisis | Sep. 11, 2009 |
| Financial Literacy | Sep. 4, 2009 |
| Future of Globalization | Sep. 2009 |
| Health-Care Reform | Aug. 28, 2009 |
| Afghanistan Dilemma (Updated: May 25, 2011) | Aug. 7, 2009 |
| Attacking Piracy | Aug. 2009 |
| Straining the Safety Net | Jul. 31, 2009 |
| Energy and Climate | Jul. 24, 2009 |
| Examining Forensics | Jul. 17, 2009 |
| Fixing Capitalism | Jul. 2009 |
| Treating Depression | Jun. 26, 2009 |
| Rethinking Retirement | Jun. 19, 2009 |
| Legalizing Marijuana (Updated: July 21, 2010) | Jun. 12, 2009 |
| Student Rights | Jun. 5, 2009 |
| The Troubled Horn of Africa | Jun. 2009 |
| Future of Books (Updated: September 14, 2010) | May 29, 2009 |
| Reproductive Ethics | May 15, 2009 |
| Hate Groups | May 8, 2009 |
| High-Speed Trains (Updated: January 5, 2012) | May 1, 2009 |
| Middle East Peace Prospects | May 2009 |
| Judicial Elections | Apr. 24, 2009 |
| Wrongful Convictions (Updated: June 14, 2012) | Apr. 17, 2009 |
| Business Bankruptcy | Apr. 10, 2009 |
| Extreme Sports | Apr. 3, 2009 |
| Rapid Urbanization | Apr. 2009 |
| Future of Journalism (Updated: September 3, 2010) | Mar. 27, 2009 |
| Future of the GOP | Mar. 20, 2009 |
| Vanishing Jobs | Mar. 13, 2009 |
| Middle-Class Squeeze | Mar. 6, 2009 |
| Aiding Refugees | Mar. 2009 |
| Closing Guantánamo (Updated: March 15, 2011) | Feb. 27, 2009 |
| Public-Works Projects | Feb. 20, 2009 |
| Homeland Security | Feb. 13, 2009 |
| Auto Industry's Future (Updated: October 3, 2011) | Feb. 6, 2009 |
| Religious Fundamentalism | Feb. 2009 |
| The Obama Presidency | Jan. 30, 2009 |
| Regulating Toxic Chemicals | Jan. 23, 2009 |
| Preventing Cancer | Jan. 16, 2009 |
| Confronting Warming | Jan. 9, 2009 |
| Future of NATO | Jan. 2009 |
