The virtual fence will remain virtual* for years, due to the surprising problems of costing too much, the contractors using ineligible equipment and the fact that it’s the government trying to do it.
*Virtual: Something which is a representation rather than the real thing. In advertising, the word “virtually” means “almost.”
Not So Fast 
Heh… “Those problems included Boeing’s use of inappropriate commercial software.” I guess Microsoft Virtual Fence, Vista Edition wasn’t all it cracked up to be.
lol. But it’s so pretty!