Yes, for back-channel talks to succeed, it is of the essence is that they stay in the back-channel, that is, secret. And that's precisely what didn't happen with the secret parleys between special emissary R.K. Mishra and his Pakistani counterpart, Niaz Naik. The two were trying to do by talking what both governments are publicly committed to doing by more military means. "When the interlocutor is unreliable, you can't have back-channel contacts," explained a source.