Palantir plan to engage in disinformation and document fabrication [pdf]
wikileaks.org
wikileaks.org
That was a cheap pitch from a corporate contractor probing for a weakening in espionage spending by targeting embarrassing but low value public targets.
If that manages to take WikiLeaks down, then it needed to happen. Lessons will be learned and news organizations will have to adapt better safeguards for their sources.
Leaks will always happen when large scale covert operations attempt to cover up unethical behavior. It would only a matter of time before another "WikiLeaks" evolved after the first went down. The next variant will be stronger. And of course, if this sort of attack fails, WikiLeaks will be that much stronger for what it learns over the course of the fight.
These sorts of organizations would be better off working with news agencies like WikiLeaks to help clear out unethical personnel that the leakers highlight.
When catching wind of some fowl shit, shooting the people who point it out doesn't make the shit smell better. Getting rid of the people who produce the shit to begin with is the only effect means of preventing future stench.