Bottles light up life for Manila poor

MANILA, the Philippines - Plastic bottles jut from the roofs in one Manila slum neighborhood, mushrooming across rows and rows of shanty homes. But they aren't just bottles - they bring light.

Using the simplest of technologies to brighten dim and dreary shanties, the bottles, which contain bleach and water, are placed snugly into a purpose-built hole in the roof. They reflect sunlight and spread it through the room beneath.