Inside Liam, Apple's super-secret, 29-armed robot that tears down your iPhone

The company, once known for keeping massive projects a secret, has recently been battling a string of product leaks. But as I try to figure out exactly where I am, I'm told Apple is ready to pull the sheets off something that's been more than three years in the making. Something that, Apple believes, has never been done, or seen, before. As we walk toward the warehouse, the doors automatically lift from above. Inside, boxes crowd the space.