Facebook and Google were partly funded with money from the CIA its almost impossible to delete your information It means someone knows everything about you,your friends,family even your posted pictures are there to be sold and looked at by strangers..
It is the CIA and any other spying agency's perfect dream to be able to search find and look at almost anyones life.
Even if you opt out and close down your page its always still there, you can sign back into it at any time in the future and its like you never left,
They are selling your information to anyone they wish and you have no say about it,thats what you signed up to 
