16. The representative of Korea thanked the delegation of the United States for its responses which had been circulated in document IP/Q/USA/1/Add.1 and, while reserving his delegation's right to pose other follow-up questions to those responses, posed the following preliminary follow-up question. According to the United States' answers, if a work had been published before 1922, it would not be protected under the United States Copyright Act, even though its author was a national of another WTO Member, if that author had died after 1947, i.e. less than 50 years ago; how could this be explained in the light of Article 9 of the TRIPS Agreement and Article 18 of the Berne Convention?