"The number of migrants monitored by Immigration and Customs Enforcement’s Alternatives to Detention program has more than doubled since the start of the Biden administration, from around 87,000 people in January 2021 to nearly 183,000 in February 2022. ICE’s Alternatives to Detention program—“ATD” for short—relies on a variety of technologies to monitor noncitizens who are awaiting their immigration court hearing, already have a deportation order, or whom the agency otherwise decides warrants monitoring."