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)

A state-run detention facility for migrants has opened in the Florida Everglades. Alligator Alcatraz — that is the official name — was assembled in eight days and opened on July 1. President Donald Trump visited the remote site on opening day, built at an old runway near the Miami-Dade and Collier county line.