Papa decided to burn the documents because he thought that they might have something in connection with the Japan syndicate. The big problem he was non-citizen in America, and he lacked a genuine license. The FBI has also started arresting people terming them as spies.
He had to move his family to an island, but after a while, he was arrested. Papa, however, did not resist the arrest but worked out with dignity while with the two men and was among those who were interrogated.