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In reply to the discussion: Dianne Feinstein Accidentally Confirms That NSA Tapped The Internet Backbone [View all]mythology
(9,527 posts)Prisms split light signals which is what was set up in the room in AT&T in San Francisco. The NSA set up a fiber optic splitter so they could get a carbon copy of the data being sent through AT&T as a Tier 1 internet service provider. There are several others of these Tier 1 ISPs and they sell to Google, Microsoft, etc and to the local ISPs like Comcast or whoever, who then sell to us.
To tap the internet, it's a lot easier to go to the handful of Tier 1 ISPs and install fiber optic splitters than it is to bother with National Security Letters or creating backdoors in software.
Director of Intelligence James Clapper should absolutely be fired, arrested and convicted for going to Congress and saying that the government didn't have this capability.