Transportation Security Administration screeners check passengers at Hartsfield-Jackson Atlanta International Airport in Atlanta last month. The TSA was created after the Sept. 11, 2001, terrorist attacks.
Erik S. Lesser/AP
Pfc. Natan Martinez fires a machine gun from a position near the Pakistan border in Afghanistan. There is concern in Pakistan about the U.S. preserving a security presence in Afghanistan beyond 2014, the deadline to pull out most if not all U.S. combat troops.
Men pray at the Islamic Center of Murfreesboro. The congregation wants to build a bigger mosque to worship in, but has faced stiff opposition from citizens who fear the local Muslims have a political agenda.