I like your BS flag ....but ....
9-11 drove United into Chapter 11 and if Delta can hold on without their having to declare, well call be a colored orangutang. Which other carrier is also at risk is beyond my purview.
From where I sit, the ability to defend a slow moving aircraft from MANPADS is doable. Expensive yes, but the alternative would certainly drive many if not all air carriers out of business. That is a big chunk of our economy.
Pay me now or pay me later. My advice is to buy Northrop Grumman. This company is installing two different defense systems into "large aircraft". A lot of customers outside of the US of A. I work as a civil servant for the Air Force.
Not if, but when in my estimation.
WD