https://phys.org/news/2019-03-safety-boeing-max-passengers.html > "Two brand new Boeing 737 Max 8 airplanes crashed in 5 months. If China has grounded all 96 of its 737 Max 8s, then Southwest, American, and United Airlines should really do something to reassure the American people that its 737 Max 8 airplanes are airworthy or ground them too," Maryland resident Eugene Gu said on Twitter. > A growing number of Americans are expressing similar doubts on social media, and some are cancelling or rebooking flights on this single-aisle aircraft, which accounted for one-third of Boeing's profits in 2018.