Mitigate or 軽減 is often used interchangeably with negate, interdict, or neutralize. It describes the methods used to remove or reduce the threat posed by a UAS. These methods include technical means, such as RF or GPS jamming, spoofing/hijacking, and kinetic attack; however, these technical methods are likely not legal for any entity other than DHS, DOJ, DOD or DOE to conduct. Mitigation may also include any capability or action associated with finding the sUAS operator and having that person safely land the sUAS, which would likely be permissible if the underlying detection system can be lawfully operated with Federal surveillance laws, as well as FCC and FAA regulatory standards and requirements.

Reference: DHS対UAS技術ガイド