With University of Maryland mathematician Doron Levy, he has been studying why the immune system can't wipe out leukemia cells that are missed by the breakthrough drug Gleevec.

FORBES: Can Math Cure Cancer?

According to the Bank of England's analysis, if every single one of those countries went bust and wrote off 50% of their sovereign debt, banking debt and non-bank private-sector debt, that would wipe out around half the capital in the UK banking system - which is another way of saying that, in theory, the majority of our banks would limp on.

BBC: Why UK banks are not immune to eurozone woes

It was forced to wipe its entire files, and painstakingly replace them from its back-up system, after technical staff the scale of the problem.

BBC: You are in: UK