found this article on yahoo news found it pretty interesting wonder if this will end up on passenger aircraft in the near future
MD-10 cargo jet equipped with Northrop Grumman's Guardian anti-missile system took off from Los Angeles International Airport on a commercial flight
Tuesday, the company said.
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The FedEx flight marked the start of operational testing and evaluation of the laser system designed to defend against shoulder-fired anti-aircraft
missiles during takeoffs and landings.
source