Is Apple's image-scan plan a wise move or the start of a slippery slope? John Naughton

Once upon a time, updates of computer operating systems were of interest only to geeks. You may recall how Version 14.5 of iOS, which required users to opt in to tracking, had the online advertising racketeers in a tizzy while their stout ally, Facebook, stood up for them. Now, the forthcoming version of iOS has libertarians, privacy campaigners and "thin-end-of-the-wedge" worriers in a spin. It also has busy mainstream journalists struggling to find headline-friendly summaries of what Apple has in store for us. "Apple is prying into iPhones to find sexual predators, but privacy activists worry governments could weaponise the feature" was how the venerable Washington Post initially reported it.