Yup. I'd say around 15% of very severe incidents are ever announced publicly. In most cases, the default is cover-up and hope no one finds out.

To anyone who thinks a libertarian/anarcho-capitalist/Network States "utopia" of Retire All Gubberment Employees (RAGE) is a "good thing", thing about air, water, and soil pollution from sewage to arsenic to particulates to lead to radioactivity. Greedy sociopaths DGAF who they hurt, which is perhaps why James Madison observed: "If all men were angels, no government would be necessary." Obviously, this is not human nature and so some laws, enforcement, and regulators is required indefinitely. Anyone who tells you differently isn't a serious person.