This sounds like a step in a very bad direction.

On the surface, it seems like a good thing, help you cope with a family member dying or what have you. But should you really cover something like that up?

For instance, in the "losing your girlfriend" scenario, perhaps you lost her because of something she did or something you did. If you cover the feeling up, you could very well just let it happen again in future relationships.

And then, watching your best friend get hit with a bullet. This would generally give someone a distaste for war, and rather they would want peace. If they cover up that memory, they might not have that anymore.

Pretty much what I'm saying is, I believe things happen for a reason, and for the most part I wouldn't want to change anything that has happened to me in the past. I've got issues from my childhood with my father being an alcoholic and all that jazz, but I've learned a lot from it. Watching my father turn into a monster and beat my mother was quite traumatic, but I've learned a lot from it. I firmly believe things happen for a reason.

Also, unless they come up with a drug that only removes memories that a person is willing to remove, it's asking for abuse.