The eternal problem : privacity or security. To each to secure his privacity...

Lessig makes a related point: "To preserve freedom further, suggests Mr Lessig, anonymity could be replaced by pseudonymity. It might become legal, for instance, to have credit cards for online transactions under different names, as long as these could still be traced to the individual owner. The challenge is to set the legal hurdles for online search warrants high enough so that governments cannot abuse their power. But at the same time to keep them low enough so that criminals can be found and stopped."