In the following video, Motley Fool financial analysts David Hanson and Matt Koppenheffer discuss the banking bailout in Cyprus and the resulting run on Cypriot banks, and take a look at which U.S. banks hold the highest percentages of foreign deposits. David then tells us how strongly that metric could correlate to risk for U.S. big banks from exposure to increasingly volatile European uncertainty, and why it's important to know metrics like these as an investor in big banks.