Mr O'Connor has exposed online advertising and the Internet as a whole to the thing he hates most: interference from bureaucrats that could sap its ability to evolve and adapt.

ECONOMIST: The Internet��s chastened child

The ability to detect man-made interference is not much use unless the source can be located, however.

ECONOMIST: GPS jamming

When the two meet, the interference pattern produced, if captured on photographic film, has the ability to change a new reference beam into a new object beam.

ECONOMIST: Microelectronics grows up