The Trump administration's latest immigration policies are facing legal challenges and sparking controversy across the United States. Several key developments have emerged, highlighting the ongoing tension between the government's efforts to tighten immigration control and concerns over civil liberties and human rights.

On Friday, April 11, 2025, a federal registry for undocumented immigrants in the U.S. was launched, despite opposition from immigrant rights groups. The Department of Homeland Security announced on February 25 that all individuals in the country illegally must register with the federal government or face fines and potential prosecution [1][2][3].

The registration requirement also applies to Canadians staying in the U.S. for more than 30 days. A federal judge recently sided with the administration, rejecting arguments that the government should have gone through a longer public notification process [1][2][3].

In a separate development, the Supreme Court on Thursday ordered the Trump administration to facilitate the return of Kilmar Abrego Garcia, a Salvadoran citizen mistakenly deported to El Salvador despite a court order preventing his removal [1][2][3]. U.S. District Judge Paula Xinis has demanded information about Abrego Garcia's whereabouts and the steps taken to secure his return [6].

The Justice Department, however, told Judge Xinis on Friday that it is "unable to provide" the requested information, calling the deadline set by the judge "impracticable" [6]. This has raised concerns about the government's compliance with court orders and its handling of deportation cases.

In another controversial move, the Trump administration is reportedly classifying more than 6,000 living immigrants as "dead," canceling their Social Security numbers in an effort to encourage self-deportation [1][2][3]. This action is part of a broader crackdown on immigrants who were allowed to enter and remain in the U.S. under programs instituted by the previous administration.

Meanwhile, Columbia University activist Mahmoud Khalil, a legal permanent U.S. resident, faces an immigration court hearing in Louisiana following his arrest on March 8. The government has accused Khalil of leading activities "aligned to Hamas," though no evidence linking him to the group has been produced [1][2][3].

These developments come as the Trump administration continues to push for stricter immigration policies, including mass deportations and increased enforcement measures. Critics argue that these actions raise serious human rights concerns and may violate due process rights for immigrants in the United States.

As legal challenges mount and controversies unfold, the impact of these policies on millions of immigrants and their families remains a subject of intense debate and scrutiny across the nation.