The number of migrant children in U.S. Customs and Border Protection (CBP) custody has fallen sharply, according to the Biden administration, thanks to efforts to transfer control of unaccompanied minors from border detention facilities to temporary shelters operated by the Department of Health and Human Services — not because of a drop in the number of migrants. At one point, CBP had custody of nearly 6,000 unaccompanied minor children who crossed the United States-Mexico border without parents or relatives. They were either captured or presented themselves to border patrol agents seeking asylum. Now, CNN reports, CBP has just 3,400 children in border detention facilities, with the rest having transferred to one of the dozens of temporary holding facilities across the country. Overall, however, the United States government is still responsible for approximately 18,027 unaccompanied minors, many of whom have been in custody for far longer than the 72-hour limit set by immigration courts.