New Printing Tech Allows the Blind to Touch Priceless Paintings

Walking into a museum and putting your hands on a priceless painting is normally, uh, frowned upon. But in Madrid right now, an unusual exhibit is inviting visitors to touch some of the most famous paintings in the world--so that the visually impaired can experience them, too. Instead of drawing a line between those that can see and those that can't, it's a show that can be seen--and felt--by both. You can