Authorities did not give a reason for Cheng Lei's detention, which comes as a time of escalating tensions between China and Australia.
Palantir has tried to downplay its role in ICE's detainment and deportation of immigrants for years, but Alex Karp said the quiet part loud at Davos.
A migrant at one of the facilities committed suicide earlier this month after being put in solitary confinement.
She and her mother were detained at a California Border Patrol station for 10 days.
An Immigrant Bleeding from His Eyes, Ears, and Nose Was Treated With Ibuprofen at ICE Detention Center
"I feared I was going to die," he told the Guardian.
Immigration Judge Reportedly Once Threatened 2-Year-Old Migrant Boy With Attack Dog: “Do You Want Him to Bite You?”
The Trump administration recently promoted him anyway.
Instead of getting congressional approval, DHS sent a notice saying the administration has the authority because of extraordinary circumstances.
Two recent government reports and a clandestine video taken during a Congressional visit to one station show just how bad the conditions are.
They're planning to walk off the job Wednesday, according to an unverified Twitter account.