Nations, airlines grounding Boeing's 737 MAX

A number of countries have banned Boeing's 737 MAX 8 medium-haul workhorse jet from their airspace in response to the Ethiopian Airlines crash that killed all 157 people on board.Several individual airlines have grounded their B-737 MAX 8 aircraft but many others are continuing to fly the plane pending an investigation into the crash and possible guidance from Boeing itself.There are some 350 737 MAX 8 planes currently in service around the world with more than 5,000 on order.