A top Pentagon commander has told Congress that Guantánamo Bay could be used to detain Cuban migrants en masse — people who would be fleeing a humanitarian crisis that US sanctions and a fuel blockade are helping cause. The Trump administration has already sent hundreds of immigrants to Guantánamo since last year. Now it wants to do the same to Cuban refugees. Guantánamo is not a solution. It is a symbol of detention without due process, inhumane conditions, and life beyond the reach of the law. Eighty-five human rights organizations — including the Center for Constitutional Rights, Amnesty International, Refugees International, and the Center for Victims of Torture — have written to Congress calling this prospect "deeply troubling and unacceptable." Congress has the power to stop this. It can defund further detention expansion at Guantánamo, block its use for unlawful mass detention, and push to end the embargo and sanctions driving Cubans toward crisis in the first place. Guantánamo should be a relic of the past. Demand Congress make sure it stays there.