It was family separation and "kids in cages" that drove Sarah Towle to the U.S. southern border. On discovering the many-headed hydra that is the U.S. immigration system - and the heroic determination of those caught under its knee - she could never look away again. Crossing the Line: Finding America in the Borderlands charts Sarah's journey from outrage to activism to abolition as she exposes, layer by "broken" layer, the global deterrence to detention to deportation complex that is failing everyone - save the profiteers and demagogues who benefit from it.