Two Greenpeace activists barricade themselves in a giant 'iPod' in front of the entrance to Apple's headquarters. Activists from within the pod broadcast audio messages from people around the world to Apple's employees and executives asking the company to power its iCloud with clean energy instead of coal. Four other activists, dressed as fully functional iPhones with TV screens as torsos, arrived to display more messages from supporters on Twitter and Facebook. The previous night, activists projected tweets, photos and messages onto a wall of the headquarters.