Marine Corps’ safety culture ‘has got to improve’ 2 hours ago Marines with the 1st Marine Regiment prepare to move toward a notional military objective on Camp Pendleton, California, Jan. 31, 2018. (Cpl. Danny Gonzalez/Marine Corps) A Marine Corps culture that lawmakers called one of mission over safety came under attack during a recent House Armed Services Committee readiness subcommittee hearing looking into failures that led to July 30, 2020, sinking of an amphibious assault vehicle and resulted in the deaths of nine service members. Though the families were briefed on the roughly 2,000-page investigation, nine months of silence and some of the findings left many families still asking questions. Two parents of killed service members testified.