The USA and rest of 5-eyes like to constantly moan about Iran, North Korea, Russia and China having 'state sponsored APT groups' hacking around the world.
But the Western media is silent about US sponsored APT groups. Its extremely hard, in the Western world, to get any information about these APT's as they are a very closely guarded secret. But they do exist. In fact, a lot of activity that US media attributes to, eg and especially China, is quite likely US APT's running false flag operations. To claim that the USA doesn't operate an offensive cyber capability would be utterly naive.
The problem is, as Snowden demonstrated, if you hoard zero-days and other vulns, not divulging them so they can be fixed, you are part of the problem.
And now the UK wants to have a veto on Apple fixing security vulnerabilities, and to even veto disclosure of them, specifically so that they can continue to use those vulns in their own offensive cyber campaigns.
By operating offensive cyber capabilities you are hurting EVERYONE, including yourselves.
Maybe the US/UK are the pot and China is the kettle. I can't tell maybe its the other way around, THERES SO MUCH SOOT ON BOTH OF THEM!