A sign for the Otay Mesa Detention Center sits in front of the building Tuesday, July 7, 2020, in San Diego. The early absence of facial coverings, lack of cleaning supplies and mixing symptomatic detainees with others preceded the first big outbreak at U.S. Immigration and Customs Enforcement’s 221 detention centers. While the point of origin is unclear, accounts of how the virus spread at the Otay Mesa Detention Center expose shortcomings and inherent difficulties of managing the world’s largest immigration detention system during a pandemic. (AP Photo/Gregory Bull)