FBI Swept Up Info About Aaron Swartz While Pursuing An Al-Qaeda Investigation
The FBI has the power to collect massive amounts of data and communications during its investigations. This power periodically ingests NATSEC steroids, pumping the FBI's data stores full of stuff not relevant to the NSA's work, but possibly relevant to the FBI's crime-fighting duties.
You would think the FBI would toss anything not relevant to an investigation. Just in terms of storage and haystack-sorting, it would only make sense to discard data/communications not needed for ongoing investigations. But you'd be wrong. The FBI holds on to everything it gets because you never know: the irrelevancies you hoovered up yesterday might be useful today.
That's pretty much what happened to Aaron Swartz, according to documents published by Dell Cameron of Gizmodo.
https://www.techdirt.com/articles/20181217/11080641248/fbi-swept-up-info-about-aaron-swartz-while-pursuing-al-qaeda-investigation.shtml