The threat did change once the cockpit doors were hardened, but there are--
On April 20th, 2010. See this statement in context.
On April 20th, 2010. See this statement in context.
April 20th, 2010 / 9:35 a.m.
President and Chief Executive Officer, Canadian Air Transport Security Authority
The threat did change once the cockpit doors were hardened, but there are--
See context to find out what was said next.