Why Is the PTO Issuing This, Rather Than the Copyright Office? (And why is the PTO currently advertising for a copyright advisor position?) The Register reports that "US Patent Office says P2P threatens national security." From the article: "The US Patent & Trademark Office (USPTO) has launched a stinging attack on peer-to-peer (P2P) file sharing services, publishing a report from its Office of International Relations earlier this month." You can read the report here.