"The probes themselves are expendable, I think? Not even smart enough to find their ways home."
Yone nods.
"Do we have any way to control them? It doesn't seem like they're armed or dangerous, except if they ran you over." 'Slower than a running human' is still plenty of momentum for a giant metal bullet-craft.

"And in the obvious case where the black box has already been stolen by aliens - do we flag it and move on, or try to chase them down?"