Creative Speculation

In the United States radar is recorded. Thus after 911, even if the controllers made mistakes, turned off their screens, lost power, etc. the data is still there. Thus crazy claims of aircraft swaps, etc, are all proved wrong by the data. NORAD does not control air traffic, ATC/FAA does, thus the claims made about NORAD are silly anyway. ATC could be used to identify bad aircraft and fighter could use ATC, the smart pilots would... The only possibility for CTs are in the fantasy minds who make up the fake claims.

It is true, if your transponder stops working ATC will have you land and repair it. So, it means what.

History commons is hearsay, and sourced from news reports which may or may not be factual, or close to the truth. Using news source as facts is a mistake. There were no fake blips on any ATC RADAR on 911, and the 911 crap is misleading.

In the case of 911, stored RADAR data debunks all claims by 911 truth relegated to flight issues, like fake planes, change of planes, etc. all lies, proved fake by RADAR stored data.

When RADAR goes out, or failure like this, you have to resort to landing, or using the old fashion position reports.