End-I was living in PA (still do) when flight 93 came down. I was listening to a blow by blow accounting of what was going on. The radio announcer said "Flight 93 has just been SHOT down by fighter jets!" I only heard that one time. It made a lot of sense to shoot the dang thing down than let it hit another target, collateral damage, true, but understandable given the circumstances. Never heard another announcement of that.
Four years later, I meet someone who worked at the Lehigh Valley Airport for a major airline. They were under lockdown and they were all listening to air traffic control and heard the military air traffic and heard the pilots say they had the target in range and they were given the go ahead to shoot it down. They next heard the pilots announce the plane has been shot down. The person who worked for the airlines told me they were all stunned at what they heard. He was the only credible person I've ever talked to who heard the same thing I did at the same time...
A missile or two fired from close range, by very skilled warriors/pilots in the sky would've pulverized flight 93.
Note: I don't care about conspiracy theories regarding flight 93, I only know what I PERSONALLY heard at the time it was happening.