FinCEN issued a notice of proposed rulemaking, pursuant to section 311 of the USA PATRIOT Act, that identified MBaer Merchant Bank AG (MBaer), a financial institution based in Switzerland, to be of primary money laundering concern, and proposes imposing a special measure to: (1) prohibit U.S. financial institutions from opening or maintaining a correspondent account for, or on behalf of, MBaer; (2) require U.S. financial institutions to take reasonable steps not to process a transaction for the correspondent account in the United States of a foreign banking institution if such a transaction involves MBaer; and (3) require U.S. financial institutions to apply special due diligence to their foreign correspondent accounts that is reasonably designed to guard against their use to process transactions involving MBaer.