Mark Zuckerberg builds doomsday bunker media

The US tech billionaire is reportedly constructing a Hawaii compound that includes a 5,000-square-foot underground shelter

Facebook billionaire Mark Zuckerberg has reportedly started work on a $100 million family compound in Hawaii that will include a 5,000-square-foot underground bunker featuring an escape hatch and a tunnel leading to two connecting mansions.

The project is located on the