在英國的恐怖襲擊事件之后，美國國土安全部部長邁克爾·切多夫在接受幾家媒體采訪時表示將加強反恐安全管理
He added that there will be what he described as "enhanced air marshal work" on trans-Atlantic flights, with special attention to Britain. U.S. air marshals have been accompanying U.S.-bound flights since a plot to blow up airliners between the United States and Britain was unco…