Someone in the military wanted to know if it would work, and now they know. Can't learn anything without testing
Beat me to it! Also see:
http://defence-blog.com/army/u-s-for...m-in-iraq.html
Other than these focussed emitters, other counter-uav suggestions have included other uavs carrying nets to tangle the propellers of the offending uav. AFAIK no-one's seriously drawn parallels between counter-uav and clay pigeon shooting, although I suppose it's only a matter of time