“Nielsen signed off on the option to prosecute all adults who crossed the border illegally, including those with kids, knowing it would lead to family separations. The administration’s ‘zero tolerance’ policy, which sought to prosecute every adult caught crossing the border illegally, resulted in thousands of families being separated, with some parents being deported without their children.” Buzzfeed: The Secretary Of Homeland Security Said There Was “No Policy Of Separating Families.” A Memo Proves There Was.