NPR Is Laundering CIA Talking Points to Make You Scared of NSA Reporting - The Intercept: But it should go without saying that this proves nothing about causation; it is a basic logical principle that “A precedes B” is not evidence that ”A caused B.” The original Recorded Future report literally did nothing more than assert that there were visible encryption improvements from al-Qaeda that post-dated the first Snowden story, and then, based on no evidence, just asserted the causal link.
Beyond that obvious post hoc ergo propter hoc fallacy, there is no question that “jihadists” have been working for years on sophisticated tactics for communications security; the fact that they continued to be after the Snowden reporting began literally proves nothing.