Click here for audio of a 5:40 segment on PRX’s The World program, recorded Friday. Host Carol Hills and I talk about the very troubling standoff in Texas between federal and state border forces. “You have this very strange tableau now,” I point out, “of armed National Guard—their patches say ‘U.S. Army’ on them—telling Border Patrol that they cannot enter an area that is actually within the U.S. border on U.S. territory.”