The Justice Department told Texas Thursday that it intends to file legal action against the placement of floating barriers in the Rio Grande as part of the state’s operation along the Texas-Mexico border, according to sources familiar and a letter obtained by CNN.
It seems to me it would block boats, but I assume it has more effects than I understand. The article quotes a letter from a top Mexican diplomat saying
“We write to express our profound alarm over border policies instituted by Texas Governor Greg Abbott that are putting asylum-seekers at serious risk of injury and death, interfering with federal immigration enforcement, infringing on private property rights, and violating U.S. treaty commitments with Mexico.”
So I assume it really does present a danger.