NVC - Nonviolent Communication is about the language of transparency and truth - have a look for yourself at http://www.NonviolentCommunication.com ...a quote from this site sums up the practice:

Nonviolent Communication (NVC) is a life-changing way of interacting that facilitates the flow of communication needed to exchange information and resolve differences peacefully. With its focus on human feelings and needs, the practice of NVC emphasizes emotional intelligence over intellectual analysis in expressing what's going on in people. With its reliance on objective observations rather than evaluations NVC avoids making people defend themselves from value-laden judgments. And finally, by employing clear requests in place of demands, NVC raises the bar for communication skills by allowing everyone to get their needs met on their own terms, without coercion, fear of retribution, or loss of self-esteem.