Re: Capability
A lot of people seem to see this as the emergence of a new capability that could now be open to abuse. However, that capability has existing for years already - this is just the case that Apple are now talking about implementing it. It's potential for abuse is no greater than it was previously.
I'm not saying there's nothing to be worried about here - just that the genie's already out of the bottle and whichever way Apple goes with CSAM scanning doesn't really change that. Concerns that at oppressive regime or whoever could persuade Apple to scan content for something else were just as valid 5 years ago - all this does is serve as a reminder of what technology is capable of.