following friday's terrorist attacks in paris, new questions are being asked how they were able to pull off such a sophisticated attack. one question deals with money and how the organization is funded. cal perry, what do we know? >> we've broken this down into five food groopz. this is incredible what took place in paris and this global operation and it's extensive. where does isis get its money? let's talk about the territory they've taken in syria and iraq and amount of banks they overran, $400 million, maybe upwards of $500 million of cash disappeared from these banks. infrastructure and businesses,