Constant attacks on tax havens and hedge funds by some politicians and statesmen is at least inappropriate. As a matter of fact, it is thanks to “speculators” that we have learnt about the pitiful state of public finance in several states (for example in Greece). On the other hand, international financial markets are the unique source of liquidities for troubled States. This is the point of view of Nicolas Lecaussin, Director of Development at IREF.