retrieved. it's located in the tail of the plane. the boxes, in stainless steel and the memory cards containing the valuable information is wrapped in ensueinsulation. the fbi says a preliminary review of naemmes on the manifest find no criminal links. the fbi is not officially investigating at this point. because three americans were on board, authorities in the united states have a vested interest in this case. however, it's still early and investigators have everything on the table, including terrorism. >> they certainly do. thank you. some investigators had to be dropped by a helicopter. the area is barely accessible. let's go there. nick robertson is as close as possible to the site. what's the latest over there? >> reporter: wolf, the air operation, recovery is finished