If so, there was one in the Guardian this week.
I'm currently reading the rather excellent 'Walls' by Marcello di Cintio. It explores a number of boundaries around the world. The chapter on the US-Mexican border is particularly powerful with some fresh perspectives on this contested part of the world, and the boundary that reinforces a divide which wasn't as obvious before 9/11, after which the border patrols became part of Homeland security.
My HoD Claire has written an article for a future issue of 'Teaching Geography', which features some ideas developed from this book. Check my TEACHING BLOG for some further materials that we have used.
Worth seeking out.