Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.
Sen. John McCain, who will question Defense Secy. nominee Chuck Hagel, explains his concerns with Hagel's world view.
Dr. Anthony Fauci, Director of the National Institute of Allergy & Infectious Diseases, explains to Wolf Blitzer why the flu is so bad this year and what you can do to protect yourself.
Former Rep. Gabrielle Giffords and her husband, Mark Kelly, launch a political action committee to prevent gun violence. CNNâ€™s Lisa Sylvester reports.
CNN's Gloria Borger looks at the politics of major gun control initiatives being weighed by the Obama administration.
RELATED STORY: NRA will participate in White House gun violence meetings
CNN's Tom Foreman breaks down the path for Chuck Hagel to be confirmed as secretary of defense.
Obama sends message on foreign policy in second term with top national security picks, CNN's Barbara Starr reports.