COSTELLO: The black boxes from Flight 17 now in the hands of the officials in the United Kingdom. Investigators trying to learn as much as possible about how the plane was brought down and who may have been behind it. CNN's Max Foster joins us from London with more on that. Hi, Max.</s>MAX FOSTER, CNN INTERNATIONAL CORRESPONDENT: Hi, Carol. It's interesting, you know, because a lot of people suggesting yesterday that the blacks boxes aren't that important if they can prove that there was a missile attack on this plane because actually the black boxes just really give you information about what happened on board, and the best evidence will be on the ground about whether or not a missile attacked the plane, but it's interesting because the black boxes are becoming more and more important. UK security sources have told me today, Carol, that all the evidence does point to the same conclusion that it was shot down by an SA-11 surface-to-air missile launched by separatists operating in southern eastern Ukraine, but also crucially there's also evidence that the site was tampered with. So the first thing they're going to be looking at with these boxes is, were the boxes tampered with? Love to go straight into the boxes to try to get the information out of it. Actually at this point the most crucial bit of evidence might be just to look at it whether to see whether the box has been opened in some way, whether the seals have gone in any way. So it's become an intelligence-led operation at this point.</s>COSTELLO: How long do you -- how long do you think it will take for information to go out to the public?</s>FOSTER: Well, what they're saying is to analyze the box, and now that you're looking at whether or not it's been manipulated as well, you're talking several weeks at least before we get the information from here in the UK which will then go on to the authorities in Holland who will then hand any relevant information over to the police.</s>COSTELLO: Max Foster reporting live for us this morning. Thank you. I'll be right back.
Black Boxes Arrive in United Kingdom