It's not as if political dissidents haven't been executed properly without this tool, but what you're stating is now it's going to get worse. I'm of a pretty st

It's not as if political dissidents haven't been executed properly without this tool, but what you're stating is now it's going to get worse. I'm of a pretty strongly held belief that everyone the top echelons really want dead are already dead. People that have the money to reliably make this thing happen need no low tech solutions, although possibly you're worried now that anyone can do it? It seems that such a move would be used to upset a fight for power among a government. If you have a government where this is already an issue, then the problem is more likely the government than the action created by the hack. Furthermore, such a large rise in cancer cases would be heavily researched, and causation would be discovered, prompting hospital care facilities to start issuing hash code with images to prevent manipulation, if that is not already being done.