The State Department has not responded to an official complaint from United Nations human rights investigators since May 7, 2018, leaving at least 13 formal requests unanswered, The Guardian reports.

The big picture: The UN's network of global watchdogs has recently called for probes into the Trump administration's policies at the U.S.-Mexico border, including the separation of children from their families and the conditions that may have led to the death of two migrant children in U.S. custody last month. An ACLU official tells The Guardian that the U.S. is "sending a very dangerous message to other countries: that if you don’t cooperate with UN experts they will just go away."