CNN The Situation Room March 25, 2015 21:21:00
Families how this plane went down. tonight, investigators are mapping the debris field in the french alps where the aircraft is described as obliterated. recovery teams are struggling to get to the wreckage spread far apart starting in an altitude of about 6,000 feet. their challenge, navigating vertical slopes and deep ravines is enormous. >> they may have little cliff edges that they may have to pick things off of. as they descend, they may have to stop similar to this gather things put them into a bag and keep rappelling down. >> reporter: this high altitude mountaineer has climbed stark pe...