CNN Smerconish March 28, 2015 22:33:00
To ward off this type of a threat going forward, meaning from a pilot? well look no security measure is perfect, and so the way we think about it now in terms of -- especially in terms of systems like a global transportation system is that you have layered defenses. so you look at the pilot, the passengers the luggage, what's going on at the airport, and you put in so many different kinds of security defenses so that it makes anything that anyone wants to do a little bit harder. nothing's going to be perfect. our global transportation system is only as strong as its weakest link so, even if lu...