There’s no end in sight for the crisis unravelling at America’s southern border, as dangerously cold temperatures set in. On the ground, beyond the fences and wall of steel, humanitarian workers describe scenes of intolerable suffering, with families living on the streets and sidewalks, and children sick and hungry. In the border city of Brownsville, Texas, correspondent Rosa Flores spoke to a family of migrants from Venezuela about their harrowing journey to America and what awaited them on arrival.  Also on today's show: El Paso City Councilwoman Claudia Rodriguez, former New York City Council Speaker Christine Quinn, US Senate Democrat Chris Murphy, director Margaret Brown.To learn more about how CNN protects listener privacy, visit cnn.com/privacy