That means getting a firm handle on the supply of money, which roared out of control in 2009, with new lending by state banks of $1 trillion.

HSBC's history is certainly remarkable. It is one of only two mega-banks that have remained independent for more than a century, avoiding a bail-out or state control (the other is Santander of Spain).

In this case GDB will take control and interrupt the program, allowing you to examine the state of everything and hopefully find out why. To provoke this scenario we'll use an example program.