Poster probably meant to say TS/SCI: Top Secret/Security Compartmentalized Information. Part of the contract involved in getting a U.S. government security clearance assigns you liability for exposure to any TS/SCI, even if you were not the publisher. Therefore if you're subject to one of those contracts, you generally (almost always?) want to avoid reading these leaks like the plague.
Assuming it's TS/SCI: it's a highly classified and compartmentalized type of US classified material. Generally if you hold a clearance you don't want to access those links on a work computer, because DOD/DOI still consider it "contaminating" and unclassified system with classified material even if the material has been leaked to the public.
> (U) Definition: Special Intelligence, or SI, Is a sensitive compartmented information (SCI) control system designed to protect technical and Intelligence Information derived from the monitoring of foreign communications signals by other than the intended recipients. The SI control system protects SI-derived Information and information relating to SI activities, capabilities, techniques, process and procedures.
That's twice in the same minute that you've replied "That's not what SI means" (to two different definitions, so you have to be right at least once). But it would be more useful if you would supply what you think the correct definition is, rather than making us guess (or making us grovel before your superior knowledge, which is not really the point of HN).
