this story. admitting the plane isn't at the search location. >> they're essentially confirming what we told you just 24 hours ago. flight 370 is not where they thought it was. they searched a 329-square-foot zone where the four underwater pings were detected, and it simply is not there. a u.s. navy official told cnn the very same thing yesterday. we now know that because they didn't find anything, the search area expands to about 23,000 square miles. that's a lot of ground to cover. a much larger area to focus on. we're talking about hundreds of miles elsewhere along that inmarsat arc. and we do know that that search won't resume until months from now. erin? >> are they giving up on the pings altogether? >> well, again, we know that the u.s. navy official said in very plain language yesterday that those signals are most likely not from the black boxes. we should note, though, hours after that interview aired, the navy tried to walk back that comment a little bit, calling it