Mark and Priscilla Zuckerberg celebrate he one year anniversary of the Chan Zuckerberg Initiative.

Mark and Priscilla Zuckerberg celebrate he one year anniversary of the Chan Zuckerberg Initiative. Live with Priscilla on the one year anniversary of the Chan Zuckerberg Initiative. https://twitter.com/markzuckvideos http://ift.tt/2i2KiTx http://ift.tt/2hTFQIO http://ift.tt/2i2SOBT