Amnesty found that children traveling without their parents were routinely held in police stations or immigration detention centers, together with all other migrants and refugees, before being transferred to shelters.
A weird reason when you think that so many countries have found ways of keeping families together without detention.
Separate research by human rights observers has uncovered medieval-like torture systems, including a stretching rack, and reports of a juvenile detention centre head who together with his son raped teenage inmates.
He noted that he was supportive of policies that would "keep the families together" in detention facilities, which he called "humane".
The nearly two-year-old girl's father, Denis Javier Varela Hernandez, told the Post she and her mother, Sandra Sanchez, were taken to a detention facility in McAllen, Texas, together.
While President Donald Trump's executive order last week allows families to stay together in detention, the government still doesn't have a concrete plan to reunite the ones immigration officials split up.
On Monday morning most detainees were huddled together outside the detention centre on a sports ground, Davis said.
