[ L doesn't mind setting the tone; Light doesn't mind trying to take control over it. ]

Lazarus.

[ He won't necessarily allow it to be forced though he isn't going to completely 'betray' L, either. ]

The truth does cover both sides. You know I'll protect you if you're his target, but you should also know I'm not going to help you become his target.

[ Light's gaze returns to John, but his words are still to L. ]

You're right: I do want the truth. I can figure out my actions from there.