With all of the security issues in the country, including money being used to fund terrorists and the flow of drug money, the banks are under pretty restrictive rules. If your banking transactions were suspicious, the bank is required to give notice. If they don't, the bank could get punished. if you have been paying attention to the news this year, a number of banks have gotten hammered for doing questionable things.
Answered on Sep 10th, 2013 at 3:46 PM