domestic financial institutions and domestic financial agencies to take 1 or more of the special measures described in subsection (b) if the Secretary finds that reasonable grounds exist for concluding that a jurisdiction outside of the United States, 1 or more financial institutions operating outside of the United States, 1 or more classes of transactions within, or involving, a jurisdiction outside of the United States, or 1 or more types of accounts is of primary humanitarian concern, in accordance with subsection (c). (2) Form of requirement The special measures described in— (A) subsection (b) shall be imposed in such sequence or combination as the Secretary shall determine