Barton Gellman

Stuxnet, a computer worm reportedly developed by the United States and Israel that destroyed Iranian nuclear centrifuges in attacks in 2009 and 2010, is often cited as the most dramatic use of a cyber weapon.

To ask questions can become the laziest and wobbliest occupation of a mind, but when you must yourself answer the problem that you have posed, you will meditate your question with care and frame it with precision.

As all of our lives become digital, the logic of encryption is all of our lives will be covered by strong encryption, and therefore all of our lives - including the lives of criminals and terrorists and spies - will be in a place that is utterly unavailable to court-ordered process. And that, I think, to a democracy should be very, very concerning.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.