"Maybe not before I have interdimensional teleportation."
"I might be a little more delicate than 'free will for everyone'; it'll depend on how good a working relationship I wind up having with the infinity stones. But probably yes."
"I would object to Elu Thingol holding the Silmaril even were I not bound to stop him. We need them. We -" he bites his tongue - "you know what, Maitimo can stop meddling. If I had all three Silmarils right now I could get true sight at any range, amplification of magics is a thing they do when they're in conjunction. Enemy missiles would be visible anywhere in the world and instead of setting twenty thousand people to mass output of artifacts that cover a hundred feet square I could give them a day off or a lunch break or an education in the magic I'm asking them to wield with no understanding. Elu Thingol is a contemptible idiot and I will eventually take the Silmaril back from him whether I have to or not."
"When something other than the presence of the Silmaril can stand between Doriath and the Enemy, such as, say, the nonexistence of the Enemy - and I am working on that - then if necessary I will steal it from them for you myself and tell them to sit down and shut up. I am not prepared to deprive a substantial population of people who were safer before I taught you how to make bombs of its protection when they require it just because their king is a contemptible idiot."
And the world may feel more dangerous than it did when the Enemy was sitting in Angband, but he was getting stronger faster than we were, there's magics at work that we don't even understand. I guarantee you that if we'd waited to bomb Angband until he'd started making the threat Doriath was under truly apparent, it would have done even less and left him much, much stronger and probably with a flying fleet of radioactive dragons.
You could've asked 'can we keep Doriath as safe if not safer with the Silmarils here', that's an engineering problem, we are good at those."
"I am not convinced that you can protect Doriath if there's no solution to the political problem, and unfortunately its king is too much of a contemptible idiot to route around transparent manipulation from the Enemy and your hands are too tied by your oath and your reputations too corrupted for you to have a free hand at addressing the politics."
"He burrows under the ground. He learns to teleport - Thuringwethil can, over short distances, I don't see why he shouldn't be able to pick up the trick if he set his mind to it - and uses something other than radiation to attack them. He leans on the fact that they're prone to contemptible idiocy, lures somebody out in false hopes of finders-keepersing a Silmaril again because they don't trust you, holds whoever comes out hostage. He thinks of something."
"As long as having it is mutually exclusive with being attacked, whether that's the Enemy playing along or not, they will not be safer if they lose it. Do you need any more accelerated perception songs?"
And she attaches songs to them.
And she goes back to her interrupted visit with Maedhros.
Loki is in a bad mood but does not ask Lúthien why this is her idea of looking after somebody.