FILE - In this Sept. 25, 2010 file photo, Mark Zuckerberg, right, founder and CEO of Facebook talks about his donation of $100 million to help Newark public schools during a news conference in Newark, N.J. With Zuckerberg is Newark mayor Cory Booker and N.J. Gov. Chris Christie, not in picture. More than three years after Zuckerberg committed $100 million toward remaking Newark's struggling schools, the district is engulfed in a dispute over proposed large-scale teacher layoffs that is threatening to derail wider reform efforts. (AP Photo/Rich Schultz)