Hardware is easy to protect: lock it in a room, chain it to a desk, or buy a spare. Information poses more of a problem. It can exist in more than one place; be transported halfway across the planet in seconds; and be stolen without your knowledge.

Only amateurs attack machines; professionals target people.

Surveillance of power is one of the most important ways to ensure that power does not abuse its status. But, of course, power does not like to be watched.

We no longer know whom to trust. This is the greatest damage the NSA has done to the Internet, and will be the hardest to fix.

Despite fearful rhetoric to the contrary, terrorism is not a transcendent threat. A terrorist attack cannot possibly destroy our country's way of life; it's only our reaction to that attack that can do that kind of damage.

Hardware is easy to protect: lock it in a room, chain it to a desk, or buy a spare. Information poses more of a problem. It can exist in more than one place; be transported halfway across the planet in seconds; and be stolen without your knowledge.

Chaos is hard to create, even on the Internet.