Be honest about what could happen vs. being delusional about what is wanted to happen. Basically, a variant of hope for the best prepare for the worst. Sarcasm is a great way to do that.

Military generals and ops people can have healthy cynicism about the probability of any new technology being bug-free.

Oh it gets even better. You can't even find the best ones in online pictures I think. They have an auditorium with floor to ceiling banners everywhere with those slogans (and those are the bold white font on red background I was referring to). All that's missing is Stalin preaching from a podium. Zuck pontificating on the "knowledge economy" does give him a run for his money though.

And lest anyone mistake me for a hater, let me be clear that I have a tremendous amount of respect (even awe) for the information empire they've managed to build. I do question its value however. I know few (if really any) people for whom Facebook has been, on balance, a positive influence in their lives.