deterioration of the financial condition of the plan. The trusteeship of such Secretary shall continue until the conditions described in the first sentence of this subsection are remedied or the plan is terminated. (b) Powers as Trustee The Secretary, upon appointment as trustee under subsection (a), shall have the power— (1) to do any act authorized by the plan, this title, or other applicable provisions of law to be done by the plan administrator or any trustee of the plan