good. 300 agents have been deployed to the area to try to secure it. is that making any difference? >> it depends on who you ask. janet napolitan toe said recently our southern borders are more secure than they've ever been and some of the residents told us there's no question they feel a little more secure with the presence of so many additional agents. the sheriff did point out that the county is huge. we're talking about 5,000 square miles, 91 miles that run along that border wide open. and he says you know, consider the fact that these towns on the other side of him have fallen. he worries how long it might take for that to spill over to happen here. >> thelma, these are great pieces. we'll see you back here tomorrow for part three. thank you. we have heard, parents perhaps you in particular, how colleges are charging a heck of a lot more money for tuition. but one university is actually making tuition cheaper. coming up next, i'll be smoking with the man behind the change. good enough to join me from