[totalZero]

The problem is that Fenn's family had information about his true identity that would have come out due to a New Mexico subpoena.

[GavinMcG]

But it probably doesn't have to. The finder could file anonymously to be joined as a party, and could request that the case be sealed.

[JKCalhoun]

Note to self: next treasure I find, I will melt it down or otherwise sell it off piecemeal and discreetly over a long period of time.