transponder transponder to be off. it tells the plane's altitude, location, and speed. there's only two reasons that this piece of equipment would be off, someone wanted to hide that critical flight information or mechanical failure. this was the last known location of flight 370 over the south china sea as civilian aviation radar suggest. but now a dramatic new turn of events. a malaysian military source tells cnn their radar shows the plane may have still been flying an hour and ten minutes later. instead of being off the east coast of malaysia, it apparently turned the opposite direction and flew to the malacca strait, west of the peninsula. why was the plane flying in the opposite direction and why would the transponder in the plane's cockpit be turned off? >> if someone did that in the cockpit, they were doing it to