In reality, it'd flag something like "taking out a massive loan for no discernible reason", or "filed for bankruptcy".
I believe a huge part of the big AI push is that the government dragnets have collected so much data, it's nearly impossible to sift through and they're hoping LLMs can finally make sense of it, along the lines of what you're suggesting.
https://www.cbsnews.com/news/deaths-disappearances-scientist...
Soil comes in layers and it would be best to spread ground cloths to capture different soils from different layers and to replace them at the appropriate levels in the ground. While this won't defeat ground penetrating radar, it will make the burial site more closely resemble surrounding soil to make the "signal" harder for the less skilled operators to detect.
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