That helps clear it up for me. Except.... If the buggers thought they were just killing mindless drones, didn't they assume the human "drones" were connected with sentient beings as the bugger workers were ? But their intent was NOT to be hostile?

There was something I didn't understand: How did the buggers NOT know that human beings were sentient? When the buggers first attacked earth (BEFORE their colonizing mission), didn't they notice cities and buildings, not to mention satelites and space stations surrounding Earth, and the human presen...