"Too big to fail"- Is There Such a Thing? | Made in Germany

Nearly four years after its creation, the German SoFFin bank rescue fund is still propping up the country's financial industry. Now, the European Stability Mechanism is pouring 100 billion more into Spanish banks, calling them "system-relevant". What system is meant here? Should the risks banks are allowed to take be regulated? Why ailing banks shouldn’t be allowed to fail?
Read more on http://www.dw.de/dw/episode/0,,16093621,00.html