Bandit at Six o’Clock Low

 - October 19, 2006, 11:29 AM

Northrop Grumman expected to begin last month “operational testing and evaluation” of its Guardian civil aircraft counter-manpads air defense system aboard an MD-11 and, later this year, a 747. The Rolling Meadows, Ill. firm said it received Department of Homeland Security approval for the Guardian design earlier this month.