; and (iv) missions authorized to be performed by the United States Coast Guard, including those described in clause (iii) as directed by the Secretary, and as further set forth in section 104 of title 14, United States Code, and consistent with governing statutes, regulations, and orders issued by the Secretary of the Department in which the Coast Guard is operating. (4) The terms electronic communication , intercept , oral communication , and wire communication have the meaning given those terms in section 2510 of title 18, United States Code. (5) The term homeland security or justice budget materials , with respect to a fiscal year, means the materials submitted to Congress by the Secretary and the Attorney General in support of the budget for that fiscal year. (6) For purposes of subsection (a), the term personnel means officers and employees of the Department of Homeland Security or the Department of Justice. (7) The terms unmanned aircraft and unmanned aircraft system have the meanings given those terms in section 44801, of title 49, United States Code. (8) For purposes of this section, the term risk-based assessment includes an evaluation of threat information specific to a covered facility or asset and, with respect to potential impacts on the safety and efficiency of the national airspace system and the needs of law enforcement and national security at each covered facility or asset identified by the Secretary or the Attorney General, respectively, of each of the following factors: (A) Potential impacts to safety, efficiency, and use of the national airspace system, including potential effects on manned aircraft and unmanned aircraft systems, aviation safety, airport operations, infrastructure, and air navigation services related to the use of any system or technology for carrying out the actions described in subsection (b)(1). (B) Options for mitigating any identified impacts to the national airspace system related to the use of any system or technology, including minimizing when possible the use of any