User blog comment:Per Ankh/Agent Burials/@comment-4273152-20160214034558/@comment-4273152-20160214050126

I guess this is a complex case-by-case basis. For those with a SS cover, they could be listed as MIA. For others, the body may be returned or maybe copied. If the family knows their job, I imagine some arrangement is made.

And there is a Graveyard in the Warehouse. It's not just for artifacts, but decesed agents. One of my original ideas is that the Tomb of the Unknown Soldier is a crypt for agents, but that was before it was artifacted.