Mario Draghi's European balancing act

As President of the European Central Bank, Mario Draghi may have the most difficult job in all of Europe.

This former advisor to Prime Minister Silvio Berlusconi, must show the world's financial markets that he is entirely independent, even as his own nation's economy faces its own problems.

Now with Greece's entry into the eurozone being called further into question, Draghi must also convince investors the world over that Euro is still a viable and valuable currency.

Al Jazeera's Nick Spicer reports from Frankfurt.