|Hurricane Sandy is expected to move up the U.S. East Coast to join forces with a pre-winter storm from the west. Scott Pelley speaks with meteorologist David Bernard on what forecasters are calling "Frankenstorm."; And, bats are a voracious predator of pests, including insects that feast on crops. But a mysterious fungus is killing them off by the millions. Seth Doane reports from a cave in Tennessee where scientists have undertook an unusual effort to save the tiny, but important creature of the night.