>>5319924 PB
The 2-hop rule?
Here is a random list, not in any particular order of preference:
https://www.tabletmag.com/jewish-news-and-politics/256333/fisas-license-to-hop
https://wtop.com/national-security/2015/02/nsa-surveillance-hops-take-step-back/
https://www.theguardian.com/world/interactive/2013/oct/28/nsa-files-decoded-hops
https://www.lawfareblog.com/foreign-intelligence-surveillance-court-approves-new-targeting-and-minimization-procedures-summary
https://epic.org/privacy/surveillance/fisa/fisc/
http://www.slate.com/blogs/future_tense/2013/09/04/three_hops_gif_aclu_infographic_shows_how_nsa_s_surveillance_spreads_exponentially.html
https://www.foxnews.com/opinion/the-nsa-and-you-spying-on-innocents
https://video.foxnews.com/v/3663050103001/#sp=show-clips