Detailed text transcripts for TV channel - MSNBC - 20140407:13:19:00
And probably in the search so far, it's the -- it's probably the best information that we have had. >> the plane and its 239 passengers and crew, of course, have been missing for more than 30 days now. and time is running out on those black box ping batteries. they could already be out. we don't know. nbc's ian williams has more on the new challenges of the search from perth, australia. >> reporter: good day to you, chuck. this is being described as the most promising lead yet, but the search coordinator is urging caution. they are today working round the clock to try and reacquire the signal ...
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