alejandro majorkas is visiting the border. many are gathering, waiting to be processed by u.s. sleeping on dirt surrounded by garbage without much food or water. the situation just one part of the larger immigration crisis going on right now. the number of apprehensions at the border is at the highest level in two decades. rosa flores is at that border town of del rio, texas, bursting at the seams, the town, attempting to deal with the influx of undocumented migrants. >> have you seen anything like this before? >> no, no, this is a first. >> reporter: this is what the u.s.' immigration waiting room looks like in del rio, texas. a border town 150 miles west of san antonio. thousands of migrants living in makeshift huts, sleeping in the dirt, waiting their turn to get processed by u.s. immigration authorities. a sight dhs secretary alejandro mayorkas witnessed today. >> if you come to the united states illegally, you will be returned. your journey will not succeed and you will be endangering your life and your family's lives. >> right now we're going down to the international bri