to go out there, i want to look at the rig, i would look at the truck. is there anyway as he's driving to know that there are people back there? or not? >> martha: what about the responsibility of sanctuary cities, which in essence by their policies are encouraging people to come into their cities and come to these areas to find work, and there's been some discussion about them bearing burden in this case, because this is not isolated, they bear some of the burden here as well. >> and people are entitled to feel morally they bear responsibility, and maybe civilly they do. money, criminally, apsley not unless they played any kind of role. i'm waiting to see what happens on thursday. thursday is when the government will have what they call a pretrial detention hearing. they get to put forth sufficient evidence to show he knew. right away he told investigators "i didn't know." so how does he know? you are convinced he should know because as you know it's back