Even Yahoo gets it, somewhat: "How come none of the 19 terrorist's names appeared on the original passenger lists released by both United Airlines and American Airlines?" Not only that, but the time to get from one flight to another reportedly didn't jibe.
We never get enough excellent investigative reporting on such issues because there's been a cover-up.
Yahoo treaded very lightly with that one question. We need a thorough, no-holds-barred investigation. This cover-up has been allowed to go on way too long. Barack Obama has been the main tool as obstacle with his "don't look back" approach. He's guaranteed that rogues within the highest places in government will be able to more easily get away with false-flag attacks in future.