As if timing it, i received a mail from facebook today (legit email source too) saying someone had been trying to my account.
I closed my account in 2009 after tinkering with it for a couple of weeks, but only did a deactivate action in the settings and forgot about the whole thing.
My hosts file directs all facebook links to 127.0.0.1, and I don't have the app, was a bit surprised.
So, I checked it out, and it turns out my account came back from life as was in 2009. The cheeky bastards. I heard about this, but you'd think that after 8 years it would have been cleared...
Anyways, if you really want to get rid of the bloody thing, they promise they will remove all your data and your account when going here, after no further login for 2 weeks:
Just need to log in one last time.
Now, as for the US asking for my account details though... We'll just see.