Barrier:
Crucial conversations in a twitter world

While teaching about the importance of in depth conversations between managers and employees a CEO client raised this question. "Employees feel free to tell me anonymously about their concerns and do so in a pretty brutal way.  How can we encourage in depth conversations about thorny issues between employees and their peers, managers etc when it is so easy to tweet a complaint and ignore the consequences or hear the other side of the issue?"  I haven't seen any research on this question in my travels.  Anyone else have a reference or a perspective?