I'm pretty sure the threat would be implicit to the act of asserting governing power over those vampires; it's pretty much implicit in the act of asserting governance over any people, so why would vampires be any different? The only real difference is the difference in the amount of force needed to cow them, which prevents non-lethal captures without their cooperation.
As for burrowing, there are likely solutions for that as well; a sufficiently hard surface treatment would be able to resist scratching by the vampire, while still possessing the lion's share of the ductility of the under-layer. Said surface layer could well also have the property of corrosion resistance, if that's needed to resist vampire venom, as well.
How hard a surface is necessary? If vampires can cut diamonds then there's nothing on earth capable of holding one.
In the vein of the Harry Potter and the Methods of Rationality discussion threads this is the place to discuss anything relating to Alicorn's Twilight fanfic Luminosity. The fanfic is also archived on Alicorn's own website <strike>(warning: white text on black background)</strike>.
Previous discussion is hidden so deeply within the first Methods of Rationality thread that it's difficult to find even if you already know it exists.
Similar to how Eliezer's fanfic popularizes material from his sequences Alicorn is using the insights from her Luminosity sequence.
Spoilers for the fanfic itself as well as the original novels need and should not be hidden, but spoiler protection still applies for any other works of fiction, except for Harry Potter and the Methods of Rationality chapters more than a week old so we can freely discuss similarities and differences.
EDIT: Post-ginormous-spoiler discussion should go to the second thread. (If you have any doubt on whether you have reached the spoiler in question you have not.)