Artificial light in a world-renowned “dark sky” preserve is just one of the environmental and human health concerns surrounding the facility.

A federal court ruled that California's ban on private prisons and detention centers like San Diego's Otay Mesa Detention Center, owned and operated by private company CoreCivic, and where migrant children were detained separately from their parents, is unconstitutional. (ROBYN BECK/AFP via Getty Images)

The Florida immigration detention site dubbed “Alligator Alcatraz” is being met by opposition from a range of groups concerned with its impacts on local Native American tribes, the Everglades ecosystem and human rights for migrants.