As befits Silicon Valley, 'big data' is mostly big hype, but there is one possibility with genuine potential: that it might one day bring loans - and credit histories - to millions of people who currently lack access to them.

You know, it's not a given that there is an 'online' and 'offline' world out there. When you use the telephone, you don't say that I'm entering some 'telephono-sphere.' You don't say that, and there is no obvious need to say that when you are using a modem.

It's true that virtually all new technologies do trigger what sociologists would call 'moral panics,' that there are a lot of people who are concerned with the possible political and social consequences, and that this has been true throughout the ages.

There is this group of people who love innovation. Those people want to innovate, and they think the Internet is a wonderful tool for innovation, which is true. But you also have to remember that much of that innovation is constrained within the realities of the foreign policy.

Diplomacy is, perhaps, one element of the U.S. government that should not be subject to the demands of 'open government'; whenever it works, it is usually because it is done behind closed doors. But this may be increasingly hard to achieve in the age of Twittering bureaucrats.

In the past it would take you weeks, if not months, to identify how Iranian activists connect to each other. Now you know how they connect to each other by looking at their Facebook page. KGB ... used to torture in order to get this data.

Simply getting a country's population online is not going to trigger a revolution in critical thinking.