Why was the German jet flying so low and so fast?

Aired: 3/24/2015 | 0:04:14 | Clip
What happened to the Germanwings Airbus that crashed in the French Alps on Tuesday? Shortly after reaching its cruising altitude, the airplane began a dangerously fast descent over mountainous terrain, but no distress call was issued. Alan Diehl, an aviation safety consultant and crash analyst, joins Judy Woodruff to discuss the airplane model’s track record and the new investigation.