Under U.S. immigration law, a country such as El Salvador can accept someone deported from the U.S. who isn’t a citizen of that country if the person’s homeland refuses to accept them, says Theresa Cardinal Brown, a former homeland security official under the administrations of Presidents George W. Bush and Barack Obama.

The Trump administration is considering a surprise proposal from the Central American nation to incarcerate American deportees — including US citizens

Secretary of State Marco Rubio said the offer includes incarcerated American citizens who would be held in the country’s maximum-security prison.