The USS Zumwalt, the first in a new class of "stealth" destroyers. U.S. Navy/General Dynamics hide caption
National Security
Thursday
Iraqi Prime Minister Nouri al-Maliki is welcomed by Vice President Biden in Washington on Wednesday. Maliki is asking for U.S. military hardware to fight radical groups behind a recent surge in violence in Iraq. Cliff Owen/AP hide caption
Wednesday
Tuesday
National Security Agency Director Gen. Keith Alexander is sworn on Capitol Hill on Sept. 26. Carolyn Kaster/AP hide caption
Cell towers are constantly tracking the location of mobile phones. And that data, federal courts have ruled, is not constitutionally protected. Steve Greer/iStockphoto.com hide caption
Monday
Senate Intelligence Committee Chairman Dianne Feinstein during a hearing in September on Capitol Hill. Alex Wong/Getty Images hide caption
Some of the electronic equipment atop the National Security Agency's facility in Fort Meade, Md. Greg Mathieson/MAI/Landov hide caption
Social media companies like Facebook won't talk about who can access face-tagging data. That silence is a problem, privacy advocates say. iStockPhoto.com hide caption
A Look Into Facebook's Potential To Recognize Anybody's Face
Friday
An attendee looks at the new Mac Pro during an Apple announcement event in San Francisco. Justin Sullivan/Getty Images hide caption
German Chancellor Angela Merkel (right) talks with Italian Prime Minister Enrico Letta on the second day of an European Council meeting in Brussels on Friday. John Thys/AFP/Getty Images hide caption
Wednesday
Massive government surveillance of Americans' phone and Internet activity is drawing protests from civil liberties groups, but major legal obstacles stand in the way of any full-blown court hearing on the practice. Among them: government claims that national security secrets will be revealed if the cases are allowed to proceed. Patrick Semansky/AP hide caption
Monday
Le Monde has the scoop on allegations about NSA spying on French phone calls. LeMonde.fr hide caption
Sunday
A sign outside the National Security Agency campus in Fort Meade, Md. Patrick Semansky/AP hide caption