KRGV TV in the Rio Grande Valley is looking into a video captured near one of the border checkpoints on late December 2010. The video shows a military style truck packed with armed men crossing from Mexico into Texas.
We counted at least a dozen armed men in the back of the truck. The vehicle travels down the bridge toward the U.S. Customs checkpoint. Its driver makes a U-turn just before reaching the lines of cars there. It then starts back south toward Mexico. The men pull over and search a vehicle for a few minutes then resume their trek south. The presumed soldiers then cross back over the boundary toward Mexico.
Here is the actual video, which shows the men conduct a search of a civilian vehicle at a rest stop inside the United States. Mexican authorities so far deny that the incident happened at all.
Hat tip to Naomi.