Details are still emerging, but Trump and his allies are quickly working to revive Guantánamo’s shameful legacy with an unprecedented effort to imprison tens of thousands of people on the island.

The New York Times reports that migrants are already being housed in the same prison that once held individuals accused of being members of Al Qaeda. The very idea that facilities synonymous with torture could be used to detain people fleeing incredible violence and political instability is abhorrent. The potential for trauma, corruption, and human rights violations is sky-high.

This plan is more than cruel and likely illegal. It will also be extraordinarily expensive. Maintaining Guantánamo already costs hundreds of millions of dollars per year, and expanding it to imprison immigrants could cost taxpayers hundreds of millions more.

Every lawmaker who claims to care about “fiscal responsibility” or “American values” should be outraged — that’s why, with your help, we’ll make enough noise to turn outrage into action. Right now, as Congress puts the final touches on a bill to keep the government open past March 14, we have a critical and urgent opportunity to push them to deny ANY money to pay for immigration detention at Guantánamo Bay.