This is the best time to be a sniper. Ask any former sniper and he'll tell you about lying in cold rank muck in full camo for the better part of three days, having to stay so still leeches had you for lunch. We use drones. We are cutting edge and anyone can be trained in a week to run it from their smart phone. Actually they would likely use a quadracopter from anywhere in the world. An AR-15 with a small caliber and a radius of no more than 25 miles could do the job. My five year old great granddaughter could operate it it without a qualm in that most of her toys use the identical controls. This is not science fiction, it is science fact.I can be located in Texas and thanks to one of various sattellites I could put a 5. mm slug right between a miscreant's eyes.So, when you are told they can't take out a specific person, they lie. The only way to prevent the kill would be to know the plan in advance or that the cnsequence of the kill would be worse than the kill itself.