You don't need this technology to do it but it sure makes things easier and faster to do. Allowing you to automate the process and apply it on a huge scale, say

You don't need this technology to do it but it sure makes things easier and faster to do. Allowing you to automate the process and apply it on a huge scale, say for example every letter handled by the US PS. Up until now these would have been specific and targeted attacks where the benefit was worth the effort of the task, with little effort required they will have no reason not to.