Faster roads are not always safer roads - and virtually all societies, democratic or authoritarian, prefer safety over speed, even if many of their citizens enjoy fast driving.

Contrary to the utopian rhetoric of social media enthusiasts, the Internet often makes the jump from deliberation to participation even more difficult, thwarting collective action under the heavy pressure of never-ending internal debate.

There is no doubt that the Internet brims with spamming, scamming and identity fraud. Having someone wipe out your hard drive or bank account has never been easier, and the tools for committing electronic mischief on your enemies are cheap and widely accessible.

I'm active on Twitter, and I love my iPad and my Kindle.

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.

The great temptation of Big Data is that we can stop worrying about comprehension and focus on preventive action instead. Instead of wasting precious public resources on understanding the 'why' - i.e., exploring the reasons as to why terrorists become terrorists - one can focus on predicting the 'when' so that a timely intervention could be made.

Smart technologies are not just disruptive; they can also preserve the status quo. Revolutionary in theory, they are often reactionary in practice.