But also keep in mind that unless you hear a real confirmation, the case you know may actually be a third-party rumor, so... don't panic yet.
The chain of influences is big enough and reaches into national government, with a confluence of interests. I'm afraid a leak to the press could be more effective than a report to the government.
I believe t will eventually come up because these things are difficult to hide as time goes by.
You're weighing your health against your employer's profit. Are you sure you want to do that? I get that there may be an employment issue, but it's not like your career will end. Either you're irreplaceable and you'll be supported through this, or you are in a normal position and there are other similar jobs and employees around.
I'm a serious and honest simple man. :)