Question for Denmark: Why could the US allegedly eavesdrop?

Several European nations want Denmark to explain how the United States could eavesdrop from Denmark on leading politicians and senior officials in Europe, including German Chancellor Angela Merkel

COPENHAGEN, Denmark -- Several European nations want Denmark to explain why its foreign secret service allegedly helped the United States spy on European leaders, including German Chancellor Angela Merkel, more than seven years ago. “We want the cards on the table,’ said Swedish Defense Minister Peter Hulqvist, adding it was “unacceptable to eavesdrop on allies.” Danish lawmaker Karsten Hoenge of the left-leaning Socialist People’s Party, which is supporting Denmark’s Social Democratic government, said Monday that he would quiz the Scandinavian country’s defense and justice ministers in parliament about the case. “The government must explain how come Denmark has been acting as a willing tool for a U.S. intelligence service, and what it will mean for cooperation with Denmark’s neighboring countries,” he said.