cockpit were later recovered from the victims, from the cockpit crew and they used those pieces of evidence to determine what they say happened to malaysia flight 17. a short time ago, the chairman of the dutch safety board. >> as a result of the detonation, the forward part of the airplane was torn off. the airplane broke up in the air. the wreckage came down in an area of about 50 kilometers in the eastern part of ukraine. the missile was launched from a 320-square kilometer area in eastern part of ukraine. >> of course, that's contested territory. what the dutch are not saying is who fired that missile. but they do say it is a russian-built missile. they believe it is an sa-11, a buk missile. that is the missile that brought down malaysia flight 17. however, now the dutch and -- pardon me, the americans and the