More than 216,000 people with pending cases before U.S. immigration courts have been placed in a federal government tracking program, according federal data released April 14. Since President Joe Biden took office, the number of immigrants in the Alternatives to Detention (ATD) program has more than doubled, reflecting the Administration's embrace of new surveillance technology as a tool to limit reliance on government-funded detention centers.

While immigrant advocates have long called on U.S.