Answer:
Foreign correspondent accounts and private banking accounts for non-U.S. persons
Step-by-step explanation:
These are the accounts Margarita should be aware of, as these are more likely to pose a greatest risk for use by terrorists or those who wish to finance terrorist activities. The fact that these accounts belong to non-U.S. persons means that it is more likely for these people to be allies of other countries or to want to work against the United States.