Cyber attack could paralyze air traffic – Homeland Security Newswire

Around the world, around the clock, circles of flickering screens keep aircraft apart in the air, ease them gently down to the ground, and guide their precious human cargoes off the runway.

This finely choreographed global dance of large, speeding planes moved almost five billion passengers in 2009, according to data from Airports Council International.

What would happen, though, if all these screens went blank?