The Twitter page for al-Shabab, the radical Islamic group in Somalia that has been branded a terrorist organization by the U.S. Such groups are active in social media, but have not attracted many recruits. Twitter.com hide caption
National Security
Thursday
Monday
Thursday
Pentagon spokesman George Little, speaking Thursday, said U.S. and Pakistani forces both made mistakes that contributed to the Nov. 26 shooting that killed two dozen Pakistani soldiers along the border with Afghanistan. Luis M. Alvarez/AP hide caption
Wednesday
Tuesday
Kim Jong Un (center) pays his respects to his father, former leader Kim Jong Il, who is lying in state at the Kumsusan Memorial Palace in Pyongyang in this still picture taken from video footage aired by Korean Central TV of North Korea on Dec. 20. Reuters TV/Reuters /Landov hide caption
Monday
South Korea's nuclear envoys visit a warehouse with unused nuclear fuel rods at North Korea's main nuclear plant in Yongbyon, North Korea, in 2009. Following the death of Kim Jong Il, it is not clear how a new leader, presumably Kim Jong Un, will deal with the nuclear program. Anonymous/South Korean Foreign Ministry/AP hide caption
Friday
CodePink activists hold signs last January in support of U.S. Army Pfc. Bradley Manning, the alleged leaker of documents to WikiLeaks. Manning will appear in court for the first time Friday. Jacquelyn Martin/AP hide caption
Wednesday
U.S. Army Lt. Adam Wilson from Ontario, Calif., shakes hands with Sheik Mahmood Al-Ghizzi, possibly for the last time, on Dec. 5 in Nasiriyah, Iraq. The two men met for a final lunch as the U.S. military prepares to leave Iraq after a nearly nine-year presence. Joe Raedle/Getty Images hide caption
Tuesday
Software allows repressive governments to track and monitor the movements of dissidents. iStockphoto.com hide caption
Monday
Thursday
Monday
Russian President Dmitry Medvedev visits a new military radar facility in Russia's western Kaliningrad region on Nov. 29. He said it showed Russia's readiness to respond to the U.S. missile defense system planned in Europe. Mikhail Klimentyev/AP hide caption
A Predator drone takes off on a U.S. Customs Border Protection mission from Fort Huachuca, Ariz. Ross D. Franklin/AP hide caption