Let's look at this from a different angle, say Bermuda Grass. All the big clumps have been pulled, you've pulled up most of the roots which came up with the clumps. Problem solved, the invasive grass is now gone. Your flower bed/ yard, in this case UsA, is beautiful & you sit back to relax. But if you only pull up the obvious & easy to find, within a short period of time you've got the investation all over again. To kill this, you have to dig & dig to find minute little, single root strands. What if the last remaining, so low down, they aren't on the organization chart, peons of the deepstate are the people doing the cancelling but NSA can trace the action back to that specific individual. How many employees do Google, FB, Twitter, YouTube have? Much love & light. . .