You need only to pick up a newspaper or turn on the television to be reminded that threats facing America are becoming more serious and diverse.
A senior U.N. nuclear agency official urged Iran on Monday to allow access to sites, people and documents it seeks in its probe of suspicions that Tehran conducted secret research into nuclear weapons development.
Iran is poised to greatly expand uranium enrichment at a fortified underground bunker to a point that would boost how quickly it could make nuclear warheads, diplomats tell the Associated Press.
The new U.S. envoy on North Korea is no stranger to nuclear diplomacy and finding ways to deal with prickly adversaries such as Iran. His new assignment, however, could be his toughest yet: persuading a defiant regime that boasts about its nuclear weapons to give up its arsenal in return for aid.
U.S. military, intelligence and diplomatic agencies are quietly making plans to secure elements of Col. Moammar Gadhafi's expansive arsenal of weapons as his regime nears collapse and is under fire from rebels seeking to expand control over the Libyan capital.
Intelligence analysts are sifting through phone numbers and email addresses found at Osama bin Laden's compound to determine potential links to Pakistani government and military officials while U.S. officials and analysts raise concerns about the safety of Pakistan's nuclear materials.
The Obama administration and a U.N. watchdog agency want Syria to show inspectors a suspected uranium-conversion facility and two other nuclear sites possibly linked to the remnants of a covert arms program.
Mohamed ElBaradei, who has become a leading symbol for democratic change in Egypt, emerged as a bitter foe of the United States when he led the International Atomic Energy Agency (IAEA) between 1997 and 2009.
The U.N. nuclear agency cannot confirm that all of Iran's atomic activities are peaceful because of Tehran's selective cooperation with nuclear inspectors, the agency's chief said Monday.