Boo. In honor of Halloween, we visit a Pennsylvania school where aspiring make-up artists learn how to give zombies that special glow of decomposition. We’ll visit a Christian Evangelical haunted house that’s intended to scare folks out of sinning. And Jack Handey, of Saturday Night Live’s “Deep Thoughts,” offers tips for making your skeleton scarier. For example, “You don’t want to be discovered by a grave robber or an archeologist or a jogger and have the guy shrug and go, ‘Well, here’s another one.'”