No honey, they are not lying, they were simply fooled by sleight-of-hand, as one encounters with magicians.
They did see aircraft crash into the towers, but the planes they saw were NOT American 11 and United 175.
More, there was no Boeing at the Pentagon, so American 77 was not there. United 93 was NOT in that field in Shanksville, even though you and others believe there was.
When everything the American people believe is false, we will know the success of our misinformation efforts. That's what CIA Casey said in 1981. Food for thought.