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U.S. Customs and Border Protection agents instruct immigrants on separating important personal items from items to be discarded at a field processing center near the U.S.-Mexico border on December 08, 2023 in Lukeville, Arizona. A surge of immigrants illegally passing through openings cut by smugglers into the border wall has overwhelmed U.S. immigration authorities, causing them to shut down several international ports of entry so that officers can help process the new arrivals. (Photo by John Moore/Getty Images)