Border Frontlines News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> greta: you are going to the u.s. shrao mexico border frontlines of the illegal immigration battle. >> reporter: here's the border the yuma sector and tucson sector. soon is the largers border patrol unit in the country. 3200 agents and patrol 262 miles of that southern u.s./ mexico border. today we were able to ride along with agents to see what happens there. the tactics they use. while the agents were weren't authorized do interviews on cameras. the tucson sector is the busiest in the nation for border patrol. ñ tl year alone from october to october, they've already had

>> greta: you are going to the u.s. shrao mexico border frontlines of the illegal immigration battle. >> reporter: here's the border the yuma sector and tucson sector. soon is the largers border patrol unit in the country. 3200 agents and patrol 262 miles of that southern u.s./ mexico border. today we were able to ride along with agents to see what happens there. the tactics they use. while the agents were weren't authorized do interviews on cameras. the tucson sector is the busiest in the nation for border patrol. ñ tl year alone from october to october, they've already had