article_snippet.sent: Reacting to the latest embarrassing security lapse at the White House and Capitol, Homeland Security Secretary Jeh Johnson pleaded for calm and resisted calls for sweeping changes. '
article_snippet.sent: We don't have fences around We airspace, so We've got to find the right balance between living in a free and open society and security and the protection of federal buildings,' Homeland Security Secretary Jeh Johnson told reporters on Capitol Hill. '
article_snippet.sent: And so We want to stay one step ahead of every incident like this, but then again, you don't want to overreact, either.'
article_snippet.sent: We've got a well-coordinated federal response to dealing with issues of those who penetrate the restricted airspace without permission,' Hughes said.
article_snippet.sent: Downtown Washington is blanketed by restrictions on air traffic that generally prohibit aircraft from flying over the White House, the Capitol, the national Mall and key buildings without special permission.
highlights_snippet.sent: Homeland Security chief called for calm and no over-reaction to security breach .