Brochures advertising this town tout it as having an outstanding birding center, great views of the Rio Grande River, and impressive 19th century architecture in its historic district. Once we arrived in the town on Friday, we immediately headed to the river bluff area for a view of the river. As we looked out of the river the loud noise of a swamp boat caught our attention. It was a Mexican Border Patrol boat cruising at a fast clip on the Rio Grande. Looking across the river we noticed a couple of trucks with machine guns loaded on them, as well as a large number of soldiers toting other guns. They were observing a yellow raft being pulled by a couple of men who were wading in from an island not far from the Mexican shore. The raft was loaded with cardboard boxes, which, upon reaching the shore, were loaded onto the trucks. It looked like all of the men were Mexican military troops, and a lot of their attention was directed toward the mysterious boxes.