My Take | Spy agencies' criminality breathtaking

"There seems to be no limit to the violations to their hard-won liberties that Americans will put up with in the catch-all name of counterterror." Author John le Carre, commenting on Edward Snowden's whistle-blowing.

According to Snowden's revelations, US and British spy agencies have broken the most commonly used systems and standards of internet encryption.

The US National Security Agency does so by imposing weakened protocols on international encryption standards and, most revealing of all, demanding that US software and hardware companies leave "back doors" and create other vulnerabilities to their products.

Now we know why the products of some of the world's largest tech firms are always full of bugs. Some bugs were no doubt the result of carelessness, cost-cutting and pressure of deadlines. But now we have proof that others were deliberately planted.

In their zest and lawlessness, the spy agencies are opening other people's e-mails, bank accounts, medical records and essentially any kind of online transactions, while innocent users think their data is encrypted.

They are undermining the very integrity of internet commerce. Or, in the words of one critic, they are attacking the internet itself.