thousands -- thousands of other faces that we have not seen. that's, in part, because cameras have been granted such limited access to the facilities where these children are being held. let's go live now to msnbc's jacob soboroff in texas. jacob, you have been one of the few jonalists to see facilities where migrant children are being held. tell us what it is that we can't see. >> reporter: so, kasie, this building behind me is nondescript, but probably the epicenter of the entire conversation we are having. this is the border patrol central processing center called ursula. inside are 1200 detainees and more young children have been separated from their parents inside that building as their parents leave the building and anywhere else along the southern border, and that is becausis sector, the rio grand valley, sees more apprehensions, more people trying to cross illegally than anywhere else. and inside this building today, we got inside with another group