Luther, Series 3, Episode 2. Tough nut Glasgow cop George Stark has just broken into Luther's gaff in his ongoing quest to stitch Luther up for as much as he can find on him. After having a pop at Luther's wardrobe of repeatable identikit 'Luther Look Uniform' he picks up a book to find that Luther has been busy with his highlighter pens. Interesting he thinks, he could learn a lot about Luther from what he underlines. For what we underline tends to be a very close reflection of our own view on the world, when we find things that confirm that view we look to qualify them by distinguishing them from everything else. Clever stuff DSU Stark.