why people go through the the trouble of worrying about birth certs and ID's.Just get a passport and be done with it. Sooner or later Aruba is going to fall in line and require a passport. With 911 concerns,tracking people and their movements
will become a priority. Maybe not getting into Aruba but returning to the US you may find yourself waiting along time trying to prove to an agent you are who you say you are.Is that worth it??????? GET a passport.