; (III) active Federal law enforcement investigations, emergency responses, or security operations that are considered to be high-risk or assessed to be a target for unlawful unmanned aircraft activity; or (IV) in the event that either the Department of Homeland Security or the Department of Justice has identified a national security threat against the United States where there is reason to believe that the threat could involve unlawful use of an unmanned aircraft, responding to such national security threat. (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— (A) officers and employees of the Department of Homeland Security or the Department of Justice