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<!--2009-07-29 -->Bobby Dominguez wrote in to report on how the DHS is automatically collecting full travel itineraries, including hotel reservations, from electronic booking systems.  He writes:

<em>"I recently <a href="http://www.hasbrouck.org/blog/archives/001607.html">requested my "file" from the Dept of Homeland Security</a> - Customs.  It was interesting to see that they not only knew every flight I took, but also all of the hotels I stayed at too.  This surprised me because I didn't understand how they knew where I was staying.

"I researched this and realized that when I had stayed at hotels that were not booked in advance, they did not have the information on my record.  It seems that when you book through <a href="http://en.wikipedia.org/wiki/Sabre_(computer_system)">Sabre</a> or other services that use Sabre, your entire itinerary become part of the DHS record also.  I think this is what they compare your passport stamps to when you come back into the country and the Customs guy is sitting there staring at the computer screen and your passport."</em>

Sabre is used to book reservations for railways, car rentals, cruises, lodging and airlines around the world. 
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