User blog comment:Morganaforever/Morgana's reasons/@comment-99.178.248.66-20120208040057

Morgana may not have done anything outright to Merlin, but basically, his decision to poison her was sort of on the line's of Timothy McVey's decision to turn in his brother. Morgana had crossed the line into becoming, for all intent and purposes, a terrorist. I don't think Merlin telling her about his magic would have changed this for her. She's headstrong and couldn't stand by and watch people die anymore in favor of a better future in the long run. She would have tried to get Merlin to join her and probably would have blackmailed him with the knowledge of him being a Warlock. The problem is when terrorist take control, they continue to terrorize as Morgana showed in her brief bit of rule, She just trades one bad situation for another, where in the long run, Arthur will bring about the unity of both worlds.