Real or fake, the sight of blood can make you scream, squeal, faint, slip into shock, or even refuse to look away. Few things have such power over us. We head to a special effects studio to see how Hollywood satisfies our blood perversion, and somewhere amid the fleshy rubber limbs and squirting scalpels, things get a little...real. Then we meet a provocative artist, Barton Benes, who took our spooky fascination with blood to another level when he created Lethal Weapons, a series so shocking, health authorities were called in and his pieces of art wound up being cooked to 160 degrees.