In less than a week's time, a proposal to build an immigration detention center on an airstrip in the Everglades went from a controversial idea to getting the green light from the federal government.Why it matters: The facility will have lasting environmental impacts on a stretch of wilderness that's vital to Florida's ecosystem and is set to cost the state about $450 million a year,

Environmentalists objected to the plan to set up “heavy-duty” tents to house undocumented immigrants in one of the country’s most prized natural areas.