They were willing to kill Kate when the real reason she was crossed off was because she had become a mother, when Jacob crossed them off the list not because they were dispensable but because they had a life elsewhere.

That would suck...Killed because of a chalk line. Again, whose list by Widmore?

interesting metaphor I suppose. Those that try to interpret things they don't understand and what it may lead to. one line of chalk can mean a lot to some one that doesn't have the pieces.

Yeah Widmore's list.