The Federal Trade Commission has voted to restore rules to prevent broadband internet providers such as Comcast and AT&T from favoring some sites and apps over others — for instance, by slowing or blocking certain content or by offering higher speeds to customers willing to pay extra.
Since it was unclear to people at the time: remember that net neutrality does not have anything to do with content or viewpoint.
It means that AT&T or Comcast cannot cap Netflix data while letting their own streaming service be “unlimited” - networks must be neutral to the source and destination of the data.