Question 5. What is the policy about international documents?

Question 5. What is the policy about international documents?

If depends on where your are going and which flight you are boarding.  If you are traveling to Brazil, for example, and have purchased one ticket to Miami on one carrier and another airline on a different air carrier you may get to Miami, however the flight to Brazil will deny you boarding.  This means you will have to find a visa somewhere and pay the necessary fees to change your flight times and dates.