I'm talking about the same thing. For example, it's illegal for the NSA or CIA to harvest emails between American citizens. But it's not illegal for the UK to do so, and it's already understood how they did it in the past to Google users by tapping inter-datacenter connections (https://www.washingtonpost.com/world/national-security/nsa-i...), then feeding that data back to the NSA as a FiveEyes partner.