mcallen or some other community up and down this border, this issue's coming again, you know? when they continue to change the rules and allow people into this country that cross illegally, it's an open invitation. >> reporter: now, the other thing to keep in mind is that this steady stream of migration doesn't just impact border towns on the american side, it's impacting towns just across the river from where we're at. they have a shelter set up right now, about 1,000 people in there trying to figure out their next move. and on top of that, there's a lot of people from mexico who are legally permitted to come across and work. and when you have those huge influxes like we saw two weeks ago, they had to close the bridge down, stopping many of those folks from making money. mike? mike: this crisis has been nonstop for months now. what are you hearing in terms of the folks on the front lines trying to enforce the laws of the u.s.? what is the level of their morale at this point? >> reporter: well, you know, it's nonstop. you ask 'em how you doing, and they say tired.