Forensic Engineers Show How Plane Crashes Are Investigated

Aviation experts at a laboratory in France continue to examine the piece of debris from Malaysia Airlines flight 370 that washed up on the shores of Reunion Island in the western part of the Indian Ocean. The investigation involves searching for clues with the naked eye — and under powerful microscopes. VOA's Carolyn Presutti visited a forensic laboratory in the U.S. to show how it's done.