Three years after Lehmann Brothers went bankrupt, European financial institutions are under pressure again. The threat of Greek insolvency and problems in other indebted countries are also a problem for banks. Things look especially bad for French financial houses that hold lots of Greek bonds.Banks like the Societe Generale are trying to maintain confidence with radical measures. And so are the biggest central banks: they are putting fresh money into circulation. Is this cause for alarm? Report by Grit Hofmann.