The U.S. Senate is going to hold a hearing on the safety of the Boeing 737 MAX following two crashes in a matter of months. The Senate Subcommittee on Aviation and Space will hear testimony next Wednesday from the heads of the NTSB and FAA, as well as the inspector general of the Department of Transportation. The three will discuss ways to improve airline safety in light of the deadly crash in Ethiopia earlier this month involving a Boeing 737 MAX. That crash followed one last October off the coast of Indonesia. The Boeing 737 MAX has been grounded around the world since the Ethiopia crash.