Footnote

a For related articles see “Making Air Travel Safer,” Awake!, September 22, 2000; “Have a Safe Flight!” Awake!, September 8, 2000; “What Does It Take to Keep Them Flying?” Awake!, September 8, 1999; “How Safe Are Planes?” Awake!, March 8, 1999; “Fear of Flying​—Does It Keep You Grounded?” Awake!, September 22, 1988.