I'm wondering how Satoshi has managed to remain anonymous. Governments and high-level institutions have expressed interest in knowing his identity, and some have even tried to employ significant resources to find him, as evidenced by certain news reports.
The government does not have any business tracking down Satoshi. He has not done anything illegal that would require the government to track him down, that’s why. They are only curious but that is all there is.
However, Satoshi did use an account on this forum, along with an email address. All connections to this forum logged his IP address/user-agent and other digital traces.
Knowing he’d disappear, he probably took extra steps to conceal his digital track.