The two spent the full two hours together and at the end a guard had to remind Kenny the time was up. Neither wanted to leave.The theory here is that Zynga and Facebook are clashing over the percentage that the social gaming giant might have to pay to use Facebook Credits, the social networks nascent currency platform.This began like a cancer in the finger and now it is spreading to other parts of the body, he said There comes a time when the government has absolutely no control.