What is the Redeker Plan in the novel, World War Z?

The "Redeker Plan" began with the consolidation of all military forces to a secure safe zone, which would then be defended. A specific portion of the civilian population could then be evacuated to the safe zone to provide a labor force and a governmental force. Those left behind would be herded into an isolated zone to act as human bait. This population would serve to draw the undead to specific areas, so the remaining, protected civilians and military force could be saved.