“Did Serco use Boeing’s asymmetric routing patent to sabotage NORAD radar on 9/11?”
“Encryption for asymmetric data links US7023996B2 Abstract A method is provided for asymmetrically encrypting data communicated between a ground platform and multiple airborne platforms. The method includes packet encrypting ground-based data so as to preserve routing information while encrypting the remaining data. The packet-encrypted data is then transmitted to the airborne platforms. The method also includes bulk encrypting airborne-based data so as to maximize security. The bulk-encrypted data is then transmitted to the ground platform. Original Assignee Boeing Co Priority date 2001-05-04 2006-04-04 US7023996B2 Grant”
Source: Your News Wire
NORAD: Military Radar Screens Were ‘Sabotaged’ During 9/11 Attacks
April 6, 2018 • Sean Adl-Tabatabai
Military radar screens were cluttered with false information throughout the duration of the 9/11 attacks, audio recordings from NORAD reveal.
Military personnel trying to defend U.S. airspace on the morning of September 11th had false information on their radar screens due to a simulation for a training exercise being conducted that day.
Shoestring 9/11 reports: Technicians at NORAD’s Northeast Air Defense Sector (NEADS) were still receiving the simulated radar information around the time the third attack, on the Pentagon, took place. Those at NORAD’s operations center in Cheyenne Mountain, Colorado, were still receiving it several minutes after United Airlines Flight 93 apparently crashed in rural Pennsylvania.
No one has investigated why false tracks continued being injected onto NORAD radar screens long after the U.S. military was alerted to the real-world crisis taking place that morning. And yet we surely need to know more about these simulated “inputs” and what effect they had on the military’s ability to respond to the 9/11 attacks.
NEADS TECHNICIANS TOLD TO TURN OFF ‘SIM SWITCHES’
The terrorist attacks on September 11, 2001 took place in airspace that was the responsibility of NEADS, based in Rome, New York. NEADS was therefore responsible for trying to coordinate the military’s response to the hijackings. And yet, in the middle of it all, at 9:30 a.m. that morning a member of staff on the NEADS operations floor complained about simulated material that was appearing on the NEADS radar screens. He said: “You know what, let’s get rid of this goddamn sim. Turn your sim switches off. Let’s get rid of that crap.”  Four minutes later, Technical Sergeant Jeffrey Richmond gave an instruction to the NEADS surveillance technicians, “All surveillance, turn off your sim switches.” (A “sim switch” presumably allows a technician to either display or turn off any simulated material on their radar screen.) 
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