The appeals court today ruled Wikimedia presented sufficient evidence that the NSA was in fact monitoring its communications, even if inadvertently. The Upstream system regularly tracks the physical backbone of the internet -- the cables and routers that actually transmit our emoji. With the help of telecom providers, the NSA then intercepts specific messages that contain "selectors," email addresses or other contact information for international targets under US surveillance.

"To put it simply, Wikimedia has plausibly alleged that its communications travel all of the roads that a communication can take, and that the NSA seizes all of the communications along at least one of those roads," the appeals court writes. "Thus, at least at this stage of the litigation, Wikimedia has standing to sue for a violation of the Fourth Amendment. And, because Wikimedia has self-censored its speech and sometimes forgone electronic communications in response to Upstream surveillance, it also has standing to sue for a violation of the First Amendment."

The ACLU brought the lawsuit on behalf of Wikimedia and a handful of other organizations, including Amnesty International and Human Rights Watch. However, only Wikimedia moved forward with the appeal.

The NSA recently changed its surveillance practices. In April, The New York Times reported the NSA would halt its "about the target" collections because they violated the Fourth Amendment. Essentially, domestic messages unrelated to any investigation were being bundled with suspicious communications and sent off to the NSA. This aspect of Upstream is apparently no longer in practice, but the overall surveillance system is still live.

Today's appeals court decision does not suggest Wikimedia has proved the NSA is collecting all communication that leaves the US.

"We hold that these allegations, even when supplemented by the Wikimedia Allegation, including that the NSA is conducting Upstream surveillance on at least seven backbone links, are insufficient to make plausible the claim that the NSA is intercepting 'substantially all' text-based communications entering and leaving the United States," the court writes.