Mark Zuckerberg and his wife pledge 99% of their Facebook shares to charity – video

In a promotional video filmed shortly before the birth of their first daughter, Max, the Facebook chief and his wife, Priscilla Chan, discuss their decision to donate 99% of their Facebook shares to charity over the course of their lifetimes. The couple will invest the worth of their shares - valued at about $45bn - into their joint charitable venture, the Chan Zuckerberg Initiative. Speaking about the project, Zuckerberg says they feel they have a "basic moral responsibility" to "tilt their investments" towards making the world better for their daughter