Northrop Grumman Guardian

[1] According to The Wall Street Journal, the program is now the subject of a lawsuit alleging that "in 2007 and 2008 the company intentionally inflated costs, presented false bills, lied about progress and withheld test data from the Department of Homeland Security.

[4] As a result, the DHS initiated the "counter-MANDPADS" or "C-MANPADS" program in January, 2004, which tasked several defense contractors to adapt existing military countermeasures systems to commercial usage.

The system's computer analyses the input signals, to confirm that the threat is real, and then directs a beam of an eye-safe infrared laser at the incoming object.

[5] The system is wholly contained in an external, 460 mm (18 inch) high pod that weighs 250 kg (550 lb) and is mounted to the underside of the fuselage.

[7] Also, as a part of Phase II of the DHS program, flight testing began in August, 2005 on a FedEx Express McDonnell Douglas MD-11.

[5] In view of the initially successful results, Congress directed DHS in October, 2006 to expand the program to include "a service evaluation in the passenger-carrying environment."

FedEx Express McDonnell Douglas MD-11 during flight test program of the Guardian, which can be seen mounted to the belly aft of the wings.
The Guardian pod mounted on the belly of a FedEx Express MD-11 during flight test.
The pod mounted on the belly of an Air Atlanta Europe 747 which was leased by FedEx for the flight tests in May, 2006
Pod mounted on the 747
An operational Guardian pod can be seen on the belly of this FedEx Express MD-10 between and just aft of the main landing gear