The Neck Breac System is the most efficient and most effective empty hand Active-Shooter & Terrorist-Interdiction System that you can find. There is nothing that comes next to it. Even if other systems claim that they have Neck Breaks too, there is no other system on this planet that made a Science out of it and that is specialiced in that field
Why Neck Breaks?
Well, they are the only nearly 100% Empty Hand Techniques that you can use in a Life and Death Situation. All other Techniques may work 80% to 90% but you still have the problem that you can not be shure of the result. We use Knock Out Techniques on Vital Points as an entry to each Neck Break but if this is not working and you have to face for example 4 more Attackers with knifes you have the Neck Break Back Up in the same move. If the KO works of course there is no need to go further.