Summary: From fatal crashes during U.S. military operations to high-profile accidents like the one that killed basketball star Kobe Bryant and his daughter, a string of incidents in recent years have raised questions in people's minds about the safety of helicopters. John Goglia, a former member of the NTSB and former chair of the National Coalition for Aviation Education, joins John Yang to discuss. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
