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…

Since cutting ties in 1979, U.S.-Iran dialogue has been sparse and largely fruitless.

North Korea’s nuclear test may further damage nonproliferation efforts, as well as complicate ongoing negotiations with Iran to suspend its nuclear program. Much will depend on the response from Mosc…