1 million illegal arrivals expected at the southern border just this year. that eye-opening and somewhat shocking claim from homeland security secretary kirsten neilsen. the fierce backlash from democrat to call the emergency declaration fake. reporter: what a hearing, the chairman of the house homeland security committee began by admonishing the secretary for what he called they nonexistent emergency on the border and grills are on the humanitarian concerns. we are still using cages. never purposely put a child in a cage. purposely or whatever. are we putting children in cages? as of today? children are processed at border facility stages you have been at. i have seen the cages. i want you to admit the cages exist. they are not cages. reporter: secretary neilsen painted a picture of what s to