Tracking the Postcards

So after convincing the lovely staff at the US Postal Service that I was not a crazy person they told me that basically the postcards on route to the East Coast would be traveling via truck. All other US bound destinations would travel by airplane as would the cards going to Taiwan and Portugal except for Portugal which may or may not go by boat, the woman did not know. All the cards are still currently in New York but as of tomorrow morning their adventure will begin.