Adding threat-warning recievers to civilian transport aircraft will do nothing but waste money and tell the crew of the plane that they're about to die. They have no altitude or airspeed to evade, and a big lumbering airliner in landing configuration is not agile at all. If you're a landing transport in a current-generation MANPADS' close attack envelope when it launches, you're dead. Period. The solution is to find and capture or kill the people responsible for organizing, supplying, funding, and ordering such attacks and the states that support them. Which we *are* doing, or you would have seen American airliners get hit by MANPADS missiles before now.
Think otherwise? If you're close enough to take the following picture, you're close enough to put a missile into a plane. How exactly, is this plane supposed to evade a missile? Or, for that matter, an unguided RPG, a burst of gunfire into the cockpit, or any of the hundred other ways you can bring down an aircraft?
