Seems some are getting a little concerned with the lack of ability to defend against them Drones...
"...DARPA is interested in identifying novel, flexible, mobile layered defense systems and component technologies that could be leveraged to improve force protection against a variety of sUAS threats and tactics, could be fielded within the next three to four years,...
...System flexibility, deployability, and affordability will be major design drivers, as the system will only be an effective deterrent and defensive capability if it can be widely deployed to protect a large number of assets..."
https://www.fbo.gov/index?s=opportun...=core&_cview=0
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