Oh come on I mean It's not like they're the only game in town when it comes to cables going into the base. BT have got cables running into Menwith Hill carrying 100,000 telephone calls concurrently. Nor that (in the late 90's) they'd admit to this and send evidence and their then head of emergency planning (as a witness) to court and admit this. The case was an appeal by two convicted female trespassers into the American Spy base. BT had to send another solicitor to withdraw evidence submitted and shut up their own witness. That fiasco earned a rebuke for the company and the witness from the judge who said:
"If I had a burglar alarm system, I would now think twice about having it operated by BT"