PhD comics

It's worrying when a genuine academic, even if an amusing one, isn't allowed into the UK, which is what seems to be facing Jorge Cham who does the cartoons of PhD students' problems, Piled Higher and Deeper has had trouble with the UK Borders Agency. See his cartoon at http://www.phdcomics.com/comics/archive.php?comicid=1243, which indicates he's on the point of being thrown out before he can do his lecture tour.