Attribution science is becoming an increasingly important tool in climate lawsuits.
The tech aims to identify people’s irises and stop the rise of fake accounts and malicious scams.
The discussion is a sign the AI firm’s technology may be too critical for even the US government to do without.
The Paris prosecutor’s office told the BBC it had “taken note of the absence of the people summoned”.
A stellarator is difficult to build, but could it be the best way to make fusion energy work?
Ternus will take over running the technology giant in September as Cook steps up to become executive chairman.