U.S. Secretary of State John Kerry is clearly concerned about North Korea's provocative actions and did not mean to downplay the seriousness of the issue when he said Pyongyang is "quieter" than before, a government official said Monday. "The secretary and we all have been very clear in condemning North Korea's aggressive actions when they occur. We've talked recently about the ballistic missiles and how those were in violation of U.N. Security Council resolutions," State Department deputy spoke

The United States on Monday restricted its commercial aircraft from flying over North Korea and adjacent waters, citing the risk that the communist nation could launch ballistic missiles without warning.North Korea was one of six countries that the U.S. Federal Aviation Administration designated as dangerous regions in the wake of the shooting down of Malaysian Airlines Flight 17 last week. The five other countries with dangerous regions are Ethiopia, Iraq, Libya, Somalia and Ukraine. "FAA prohi