Because if he had actually succeeded in getting companies to set up their offerings so that they all came
with filters on and you had to switch them off, the industry consensus is that while you'd stop some proportion of the
technically illiterate from accessing porn, that would include few
children — and it would also add massive impetus to the
growing stampede towards the «Darknet» - a place quite beyond the ability of the authorities, at present, to police effectively.