On Saturday in North Dakota, security guards working for the Dakota Access pipeline company attacked Native Americans with dogs and pepper spray as they resisted the $3.8 billion pipeline’s construction on a tribal burial site. As the video of Saturday’s action went viral, people immediately began comparing the dog attacks at Standing Rock to the violent crackdown against African-American protesters during the civil rights movement. For more on the dog attacks at Saturday’s protest, we speak with Jonni Joyce. She’s an expert in law enforcement canine handling with more than 25 years of experience. She is the head of the consulting firm Jonni Joyce Seminars, International in South Dakota.