locked out the co-pilot and went on a suicide run. there seem to be a spat of cases in which the pilots kill themselves and all people on board the plane, which is a disturbing prospect to look at. >> the safety questions being raised, do you believe they are fair at this point? >> it all comes down to whether the public feels safe getting on airplanes. everyone involved needs to work together to understand what's happening and try to prevent it happening in the future and people feel like when they get on the plane they'll get safely to their destination. >> we greatly appreciate your time. that does it for this edition of "news nation." up next, andrea mitchell's exclusive interview with former defense secretary and cia director, leon panetta. and this is a soda a day for a year. over an average adult lifetime that's 221,314 cubes of sugar. but you can help change that with a simple choice. drink more water. filtered by brita. ♪