Criticism is common in the public sector. After all, the public feels-correctly-that it has a right to understand where its tax dollars are being spent. But as a participant in a PPP, it is important to learn to address criticism, not as a means of ignoring the concerns of the public, but as a means of making the case for your project and "claiming" the value that it provides. Many criticisms of PPPs are justified, of course. We have, in this Guide alone, already explored several failures in order to learn from them. But many of the criticisms levied against PPPs are motivated not by the facts, but by moral aversions to the concept of partnering with the private sector. Accusations of corruption are common, as are more moderate accusations of waste. If a government is to maintain its credibility as a PPP partner, then these criticisms must be answered-not just at the conclusion of the partnership, but also during the preparation and engagement phases. It is, of course, impossible to predict every criticism that might come your way in designing and operating a PPP. But generally, criticism falls into one of three categories.