You're so fuckin dumb. You said those flights were destined for New York anyways, so they were close to the airport. I said you are wrong, they were destined for California. And how many people do you think are working in the airport tower? Very few. They can't track every flight. Those airports, especially the one in New York have flights going in and out like an assembly line. They literally have planes lined up on the runway, and in the air. They don't have time to track flights outside of their airspace. The New York tower is not going to watch a flight that originated from Boston when they already have too much on their plate. And it doesn't take half an hour to go from 30,000 feet to 2,000 feet. It only takes a few seconds. These planes travel at hundreds of miles per hour. So even if someone does notice something wrong, there is very little time to react. These flights originated from inside the United States. It would be different if they flew in from outside the United States airspace. Planes coming from outside are observed differently from planes originating from inside. The transponders are turned off so communications are cut off. It's not just verbal communication. It's also mechanical communication as well. Planes have beacons that send signals to radar systems. This is how radar systems show where a plane is located. When transponders are disabled, the plane's beacons no longer sends signals. Once the plane stops sending signals, the radar system no longer has the plane in it's sight. It's obvious that you don't have any clue about flying. There is no need for you to lecture me. Like I said before, I personally know people who are pilots, and I almost decided to take flying lessons myself. So I'm not exactly green on this subject as you think I am. Besides if you think you know so much, why don't you have an answer about the Malaysian flight that disappeared without a trace? If all flights are monitored as well as you think, then where is that plane? What happened to it? This happened 5 or 6 years ago, well after the 9/11 attacks. This didn't happen in 1929. What's your answer, Mr. Know It All?