Alex Marlow, Brandon Darby Discuss Impact of Gaps in U.S. Border Wall

"The Gulf cartel wouldn't continue sending people to this opening, if it didn't work sometimes," Breitbart Border and Cartel Chronicles Director Brandon Darby told Alex Marlow, Editor-in-Chief of Breitbart News, while standing in front of a gap in a border wall built near the southern border, in the United States.