Real terrorists are intelligent, otherwise they are just suicidal dumbasses. If they were so easy to pick up, how is it that the US keeps spending billions, yet are constantly behind on finding them.
Also with all the information that is out there, only a complete Special person would be caught like that.
Don't think MS does that, there are instances where I would have liked it (though in general, I really don't want that). Of course when you use OneDrive, it does do that of course.
So yeah, OpenOffice is still a really good pick, if you don't mind paying, go Office and if you don't mind getting your info used by MS, use OneDrive, because it does work well with it.