Here the new report on world corruption, the Transparency International's Corruption Perceptions Index 2012, outlines how corruption is a major threat.
Corruption destroys lives and communities, and undermines countries and institutions.
The Corruption Perceptions Index scores countries on a scale from 0 (highly corrupt) to 100 (very clean).
While no country has a perfect score, two-thirds of countries score below 50, indicating a serious corruption problem in the world.
Italy ranked 72nd worst than South Africa,Bosnia Ghana and Macedonia, the only developed country aside from Greece to be ranked so bad.
In Transparency's words: "Corruption amounts to a dirty tax, and the poor and most vulnerable are its primary victims."
Corruption translates into human suffering, with poor families being extorted for bribes to see doctors or to get access to clean drinking water. It leads to failure in the delivery of basic services like education or healthcare. It derails the building of essential infrastructure, as corrupt leaders skim funds.