Since they've been working on ERASING memories an issue here comes from such an interface being able to do essentially the opposite of that. As with any tool they can be used for benevolent and malevolent purposes. If the government is involved it always eventually seems to go down the malevolent path. War and better weapons. Control and manipulate the population. How easy would it be to control the population when you can erase memories and replace them with custom designed ones.