In Chapter 15 of 17, Gonen, an education reporter, discusses the public versus private debate charter schools present US and NYC wide. He highlights two specific friction inducing charter school issues. The first is that most charter schools are non-union. This threatens the city's teachers union. The second involves space. In NYC, the space battle is the primary source of charter school negativity, as they claim unused or underutilized class space in public school facilities.