President Donald Trump signed a presidential memorandum freezing federal government hiring Monday (Jan. 23), potentially damaging FDA's efforts to fill 1,000 vacancies at the agency if FDA jobs are not exempted under the memo's clause exempting personnel needed for public safety or those deemed by the Office of Personnel Management chief as “otherwise necessary.” Questions remain over how the memorandum will affect FDA. Political appointees are not affected by the hiring freeze. The freeze fulfills a promise Trump laid out...