Originally Posted by
swag
You'll need to claim your bags at DFW, then clear customs. Once through customs, there will be a re-check bag drop for you to use, no need to use the main ticket counters.
And when you drop your backs and take the escalator up into the main terminal you will see a security check-point on your right. If it is crowded continue to walk, maybe 75 meters, and you will come across another security check point that is usually a breeze to clear.