I have been saying this for months, mass graves are a certainty. History doesn't have any instances of what is happening in our country right now where mass killings weren't eventually discovered.
We've got all the pieces in place. A leader who has demonized millions of his country's people. A legislature and court system who've stripped millions of people of all of their rights. A secret police force with unlimited powers that only answers to the leader. Secret prisons and detentions. Secret deportations. There is no accounting for who went where and if they're even still alive.
Furthermore, this secret police has been populated with the worst of the worst people. There are people in ICE custody being killed right now, their bodies are being buried in holes in the ground somewhere to be discovered later. Is it by the dozens? Probably. By the hundreds? Hopefully not yet. By the thousands? It will be if it's not discovered soon. There are people being abused, there are women being raped and probably trafficked.
What is happening right now is a great evil and it's worse than most imagine. And it will not go on in secret for very long, it will come to light.