BRIAN KILMEADE (GUEST HOST): I understand that the Mexicans have fortified the border, they are ready for this, and those on the northern portions of Mexico are steeling themselves for more problems. So, what is Mexico going to do different this time, Steve?

STEVE HARRIGAN: You really -- as we can see, some more -- it looks like very young men here -- ¿Cuántos años usted? -- He looks to be about 16 or 17, most of them carrying just one sack. And strangely enough, a lot of the young men that I've talked to had absolutely no money in their pockets, for what could be a month-long trip. One man told me today, “I will rely on people on the road to feed me.”

We haven't seen any handouts, we haven't seen any financing. We have seen some, like, church soup kitchen lunches, people providing for the migrants, but largely, they've really been on their own.

It's mainly young men, but we've seen some women, husbands, mothers and small children too, which is a really tough road. But about the Mexican reaction, they might've worn out their welcome, especially around Tijuana. They've just shut down a major shelter there in Tijuana, just as another caravan is coming. And these caravans are getting bigger and faster.

We don't know how big this one's going to get. It's about 2,000 but it could go to 7,000, 10,000, or 15,000. There's two more scheduled, so now the waves are getting closer and closer together, because I think these caravans, at least here in Guatemala and in Honduras are seen as a success. People have not been deported back home, they've not been thrown in jail. They have made it, so more people are joining.