Do you know how many people are searching Nakamoto, if he shows off police will put him/her or a team into the jail, they would require something to kill bitcoin or force the bitcoins be burned or get into circulation, or worse going auction. I do hope he keep hiden, the last person that claimed Nakamoto identity just hasnt balls to proof or sign any message from the adress.
Why they will put he in the jail?
Maybe, out of sheer frustration and butthurt that Bitcoin is giving them? They wouldn't necessarily put him in jail, but they (I mean alphabet agencies, before all) could easily make his life unbearable, or, what would be even worse for Bitcoin, they might make him an offer that he couldn't possibly refuse and use him to discredit Bitcoin or do something to that tune. Provided Bitcoin itself is not their creation, in the first place...
By them I mean alphabet agencies such as CIA, NSA and their likes