; (B) seek such assistance and support as may be required in the performance of its duties from appropriate Federal departments and agencies; (C) enter into contracts or make other arrangements, as may be necessary for the conduct of the work of the Commission; (D) make advance, progress, and other payments that relate to the work of the Commission; (E) provide transportation and subsistence to persons serving the Commission without compensation; and (F) prescribe such rules and regulations as it determines necessary with respect to the internal organization and operation of the Commission. (2) Hearings and sessions The Commission may administer oaths or affirmations to witnesses appearing before it. Any such hearing shall be open to the public. (3) Powers of Members and agents (A) In general Any member or agent of the Commission may, if authorized by the Commission, take any action which the Commission is authorized to take by this section. (B) Obtaining official data (i) The Commission may secure directly from any department or agency of the United States information necessary to enable it to carry out this section. Upon request of the Chairperson of the Commission, the head of that department or agency shall furnish that information to the Commission. (ii) In order to carry out its functions, the Commission shall— (I) utilize existing information, both published and unpublished, when possible, collected and assessed either by its own staff or under other arrangements; (II) carry out, or award grants or contracts for, original research and experimentation, when existing information is inadequate