"Europe has turned into a "happy hunting ground" for foreign security services, its human rights watchdog warned yesterday in a report into allegations about secret CIA "extraordinary renditions" of terrorist suspects. "It would appear that most of Europe is a happy hunting ground for foreign security services," said Terry Davis, the secretary-general of the 46-country Council of Europe. "Europe's skies [also] appear to be excessively open. Very few countries seem to have adopted an adequate and effective way to monitor who and what is transiting through their airports and airspace.""