and 33. What's the Balance in My Credit Card Account? Cavos Metdolas is a money laundering organization laundering method that Cavos Metdolas has been for a drug cartel in Wisconsin and Illinois. A money balances on credit cards controlled by the organiza- using is to prepay, from an Internet bank account, tion. Visa and MasterCard will send refund checks back to the credit card holder when the positive balances remain unused. The card owners have ad- dresses that are listed in Argentina, Colombia, and the United States. Once these checks are received from the credit card companies, they are deposited into legitimized accounts. Cavos Metdolas has been using up to 1,000 credit cards in this scheme. There are only 30 dif- ferent "real" card owners. Cavos Metdolas has a pri- vate banking relationship with First Bank of Boston through its Brazilian shell company, Perzola. Staff can write checks from the Perzola account within U.S. borders using their shell company's correspon- dent account at First Bank of Boston. What would be the weakest point in this money laundering scheme