I can't comment on the parent, but here are some disclosures of international capability that Snowden could have kept to himself:
- RAMPART-A
- Anything collected and shared by Five Eyes would have originated overseas. There's quite a bit of GCHQ material, such as Karma Police
- NSA ability to cross airgaps in China
- NSA Core (undercover human agents tapping China, South Korea and Germany) and TAREX (target exploitation running that out of embassies)
- NSA MonsterMind
All of these are only deployed overseas and there are many more such documents. Some have unredacted names of regular people who run these programs, and pieces of info that're miscellany to you and me, but gold to state intelligence services. Both Wikipedia and Lawfare distinguish between Snowden's disclosures of perhaps-unconstitutional domestic surveillance and probably-consitutional international surveillance:
First, Snowden did not have much of a chance to selectively leak documents. He gave basically everything he had to journalists and they've sorted it out.
Second, while many of those actions may be constitutional, citizens should know what their government is capable of and deploying against people. And arguing whether a certain program was constitutional seems pointless when they never get punished.
- RAMPART-A
- Anything collected and shared by Five Eyes would have originated overseas. There's quite a bit of GCHQ material, such as Karma Police
- NSA ability to cross airgaps in China
- NSA Core (undercover human agents tapping China, South Korea and Germany) and TAREX (target exploitation running that out of embassies)
- NSA MonsterMind
All of these are only deployed overseas and there are many more such documents. Some have unredacted names of regular people who run these programs, and pieces of info that're miscellany to you and me, but gold to state intelligence services. Both Wikipedia and Lawfare distinguish between Snowden's disclosures of perhaps-unconstitutional domestic surveillance and probably-consitutional international surveillance:
https://en.wikipedia.org/wiki/Global_surveillance_disclosure...
https://www.lawfareblog.com/snowden-revelations