U.S. Markets open in 2 hrs 51 mins

Here's what one top analyst says Boeing's 737 Max problems mean for the airlines

David Vernon, Sanford, C. Bernstein, on the impact grounding the 737 Max will have on Boeing stock. With CNBC's Melissa Lee and the Fast Money traders, Pete Najarian, Tim Seymour, Karen Finerman and Guy Adami.