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)

A detainee sits at the Otay Mesa Detention Center Wednesday, Aug. 23, 2017, in San Diego. The facility was at the center of the first big novel coronavirus outbreak at a U.S. immigration detention center in April 2020. (AP Photo/Gregory Bull)

A guard passes a sign for CoreCivic at the Otay Mesa Detention Center Wednesday, Aug. 23, 2017, in San Diego. The facility was at the center of the first big novel coronavirus outbreak at a U.S. immigration detention center in April 2020. (AP Photo/Gregory Bull)

Inmates walk down a hallway at the Otay Mesa Detention Center Wednesday, Aug. 23, 2017, in San Diego. The facility was at the center of the first big novel coronavirus outbreak at a U.S. immigration detention center in April 2020. (AP Photo/Gregory Bull)

A man walks in a hallway at the Otay Mesa Detention Center Wednesday, Aug. 23, 2017, in San Diego. The facility was at the center of the first big novel coronavirus outbreak at a U.S. immigration detention center in April 2020. (AP Photo/Gregory Bull)

Inmates walk down a hallway at the Otay Mesa Detention Center Wednesday, Aug. 23, 2017, in San Diego. The facility was at the center of the first big novel coronavirus outbreak at a U.S. immigration detention center in April 2020. (AP Photo/Gregory Bull)

Gregory Arnold, a former guard at the Otay Mesa Detention Center, poses for a picture Tuesday, May 12, 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)

Issis Zavala, of Honduras, poses for a picture Thursday, May 7, 2020, in Carlsbad, Calif. Zavala was detained at the Otay Mesa Detention Center before being released with an ankle bracelet. 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)