two years ago i had the most horrific transit through Houston, with an over night stop.. over three hours to the first desk, and over another hour to get out if the airport. last week i went again, dreading the prospect.
how very different. if you have a ESTA visa, look for signs to the left as you enter the arrivals hall, the first signs are very clear, later slightly confusing, just concentrate on ESTA. an electronic terminal deals with immigration and customs at the same time, register your passport , select the obvious answers, and a record of your transit appears complete with photograph. this is handed in as you leave the hall. total time from arriving in the hall---- 15 minutes.