why are the aliens using two methods of human control ?
I've been watching this series from the beginning by renting Netflix dvd's. I'm up to the third season as of 12/11/2015. So, forgive me if there is some information I've yet to see.
But, where I am now, upon viewing the complete control the bugs/probes/bio-implants [ ? ] give the invaders over a human [ over "Hal" and then "Lourdes" ], I'm wondering why do they bother with the harnesses at all ? Why not just put their efforts into trying to infect all the humans with these bugs/probes, take mental/physical control of all humans, and thereby crush the resistance in one bold move ?
Why did they not just start out using the bugs ?
I know the real answer is bad writing since, if they began with the harness thing, they never should have introduced the bug/probe thing. But, since they did, was an in show explanation ever given ?
Any insightful information would be appreciated here.