FAILURE
RADAR does not need transponder codes to identify an aircraft. This post prove you are full of junk ideas and use failed Internet junk to form your dumb ideas and failed opinions.
RADAR has positive ident on all 4 planes. Redo
On 911 positive identity of all four planes..
Serial numbers are not needed all four planes were identified by ATC.
Your post is a failure like your opinions; bring facts and evidence next time; learn why you are a failure at this
You have no evidence of reasonable doubt you have failed ideas and lies.
What identifiers does RADAR give? Can you use RADAR to positively identify a particular aircraft?
When I read the ATC transcripts, they thought they had FL11 heading towards D.C. AFTER it supposedly struck the north tower. Did RADAR fail?