Since the United States has been found to have been spying on German Prime Minister Angela Merkel, Merkel should use her authority to sanction the United States in as many ways as possible. The fact of the matter is that such spying cannot be tolereated in this day and age.
Yes, German Prime Minister Angela Merkel should sanction the United States for spying on her, because Merkel needs to send the message for herself and for the rest of the world that the spying behavior was unacceptable. Germany has a strong economy, and they are friendly towards the United States. The US did not need to spy on her, of all people.
Angela should not sanction the United States for spying on her because I do not believe they are currently or ever will be the only country to spy on a citizen from another country. It is shame to say that countries do not fully trust each other, but that is just where they are at.
Allies spy on allies - this is the truth of foreign affairs that has been the case for all of human history since the beginning of espionage. While the methods have changed, this fact has not, and it has simply updated itself for 21st century technology, something that Germans might understand.
It is clear that most countries have spy programs against each other. Although it has come out that America was spying on Angela Merkel, it is likely that the Germans and the European Union are also spying on America. This is a reality of life in the 21st century and it cannot be avoided.