CNN Anderson Cooper 360 March 25, 2015 03:01:00
As you probably know, it went down in the french alps on a flight from barcelona to dusseldorf, germany. the plane descending 27,000 feet in nearly 8 minutes and apparently flying straight into the ground. tonight, there is new focus on a key safety feature on airbuses that can sometimes under rare conditions put them into a descent that can hard to stop. airbus knew of the problem, and the european aviation safety agency the equivalent of america's faa issued a warning about it nearly four months ago. rene marsh has been working her sources on this. she joins us momentarily, but first, how th...