Correct. I disregarded the nationality issue in assuming that GCHQ having "NHS, please pass me your data because terrorists" access to the health records is equ

Correct. I disregarded the nationality issue in assuming that GCHQ having "NHS, please pass me your data because terrorists" access to the health records is equivalent to the NSA having "[GAG ORDER] Google, a secret court has ordered you..." access to the health records, given how closely those agencies seem to be working together based on the Snowden disclosures. Others may place differing weights and values on their cloak-and-dagger outfit of choice. ;)