In April 2015, I traveled from Brussels to New York (tourism) after successfully applying for ESTA. Today, my ESTA is still valid (I checked via the official website). On 22 February 2016 I will be traveling from Amsterdam to Cancún, with a transit in Houston. When I applied last year, I was staying in New York, so I answered the question Is your travel to the US occurring in transit to another country? with a "no". For my trip to Cancún, however, this question should be answered with a "yes", since I will not be staying in the US for more than two hours during my transit in Houston.
Is there some way I can change the answer to the question Is your travel to the US occurring in transit to another country? from "no" to "yes"?
Or, do I have to apply for a new ESTA?
I ask this because the ESTA FAQ specifically mentions you should answer "yes" if you're in transit - the point is that I cannot change the answer to this question. The only thing I can do is change the NY address I stayed last year into "In Transit", but I'm not sure whether that's sufficient.
My doubts only grow by reading the explanation from the official ESTA website (see bold text):
Each approved ESTA application generally is valid for two years or until the applicant’s passport expires, whichever comes first. A new travel authorization is required if: (1) the traveler is issued a new passport; (2) the traveler changes his or her name; (3) the traveler changes his or her gender; (4) the traveler’s country of citizenship changes; or (5) the circumstances underlying the traveler’s previous responses to any of the ESTA application questions requiring a “yes” or “no” response have changed. The associated fee will be charged for each new application submitted.
I don't mind that much about the $14, but if it's not really necessary, I prefer to leave all the hassle aside.