previously announced zone of debris. nbc s ian williams joins us live from perth, australia. ian, what does this mean for the old search area and the newest information and the facts as they stand right now? reporter: this is a pretty big shift in focus, mika. 700 miles almost north of the previous search area. and it does kind of suggest that all those multiple images we saw from satellites and from aircraft may have been false leads. it does suggest perhaps there is a concern that this could have been something different other than the debris from the aircraft. now, the new area they are now focusing on is closer to mainland australia, just 400 or 500 miles out of the western australia which means aircraft