Dear Moderator 2, the initial translation to English and subsequent use the term "may" for use of the passport last number. Both are permissive in nature. The only absolute statement is the comment in "red", when it says "everyone must". So the question is who made the final comment, the government or a reporter. I suspect this should be run by the US Embassy or the competent Panamanian official for this requirement. Not that it is an issue carrying a passport or copy, just obtain clarification.