The U.S. House of Representatives warned of a serious threat to national security. This information was also confirmed by U.S. President’s National Security Adviser Jake Sullivan, writes Jeff Seldin, a Voice of America correspondent. Sullivan said a briefing with key lawmakers is scheduled for tomorrow “I’m not in position to say anything else,” he said. He also said the current White House administration has gone further and taken more creative and strategic approaches to declassifying intelligence in the national interest of the United States than any other administration in history. “I’m co…