In 2010, data from your brain is scanned and recorded in duplicate on two hard drives, while the original is destroyed. One hard drive is sent off to a station in orbit in the alpha-Centauri system, and it arrives there within ten years. The other remains on earth, in a special vault. An automated process in the vault is guaranteed to grow a new brain in 2050, and imprint the saved data on that brain. If that is the whole story, then according to materialist psychological identity theorists who ground personal identity in chains of (quasi-)memories, you will thereby be resurrected.
But now consider this oddity. Suppose that at the same time (in respect of some reference frame—it shouldn't matter which one), the scientists on the station around alpha-Centauri happen to grow a brain and imprint your data on it. Then you have undergone fission: there are two copies of you. The standard resolution of fission cases is to say that you then do not exist—all the other options are more absurd. This means that the scientists on the station have it within their power to prevent your being resurrected on earth, simply by imprinting your data on a brain at the same time as the machines on earth are doing so. And this ability of theirs is not limited by the speed of light. In fact, in some reference frames it will be true to say that because they imprinted your data on a brain shortly after the vault on earth has done its work, you weren't resurrected in the vault on earth (but instead were the victim of fission). This may well seem absurd.
The scientists near alpha-Centauri, then, have counterfactual control over whether you're resurrected on earth. Is this counterfactual control a form of causal control? Well, on theories of causation on which counterfactual dependence between wholly distinct events (the scientists' pushing of buttons is wholly distinct from your resurrection, it seems) entails causation, the answer will be affirmative. So, materialist psychological identity theorists who accept accounts of causation like that seem to have to admit that faster than light causation is physically possible (I say "physically", because no part of my story seems to violate any law of nature).