thanks all for joining us. you're doing yeoman's work out there, i know, and are probably exhausted. will, you're in perth. it is home base for this search. it is nighttime, so the planes have come back or are headed back. anything new? >> reporter: what was new today, the search area size increased by about 6,000 square miles. as of our last update, still no debris recovered and no pings in five days as you mentioned. i guess the big headline here that could be coming up this week is the search going to transition from listening to deploying the submersible? we could get answers on that this week. today, no major developments as far as what was found on the indian ocean. >> the fact that they broadened the search area, does that indicate that they do think they're now moving back to "we've got to find some debris" and obviously, put in those underwater sonar detectors? >> for the 307 families, this debris is crucial. even a photo you have to think might not be enough for some of