This is big, and it probably exonerates Trump and implicates former president Obama. Good. But this leak outs a whole bunch of CIA methodology and that is a national security breach. A really serious one. It's really bad.
What the CIA has been doing is also a concern. Yes, they need to protect America. And they should have all tools at their disposal that they deem necessary. But there's a big BUT: some of the methods they employ have wider reaching implications and possibilities for American citizens. What the CIA is capable of doing makes the Lois Lerner IRS targeting of various Tea Party groups kindergarten playground level stuff. That's really, really bad. And the situation and potential needs to be debated as to the merits of allowing the CIA to have this capability and do these sorts of things. If there is enough merit, how does it remain controlled and dedicated to a specific scope.
And even the value of WikiLeaks itself is up for debate. WikiLeaks is a double edged sword because with every exposure of American secrets, they reveal things that put Americans at risk because they weaken the institutions that were designed to protect America from foreign malfeasance. The question now is whether those very institutions, like the CIA have grown beyond control and/or can simply be used by those in power in ways they were not designed to be used.
I wonder how long it will be before the Democrats blame the latest data dump by WikiLeaks on the Trump administration in an effort to exonerate themselves on the (unfounded) Russia claims in the media.