Debating global warming policy has moved to the top of agendas worldwide, but some skeptics still question whether action is necessary or possible.

A profile of the international terrorist network that the United States has singled out as the most serious threat to U.S. security.

Libya, for years a thorn in the side of U.S. policymakers, has boosted its profile in recent years, renouncing terrorism and abandoning its WMD. In response, the U.S. State Department has removed Lib…

A profile of terrorism in the Philippines.

The reliance on unmanned drones to target terror suspects in Pakistan has been quietly lauded by U.S. officials. But the covert program, which has so far gotten little public scrutiny, is facing moun…