Yes but what was the reason behind it? They want your password so you can easily lookup who else from your contacts is using FB to simplify & accelerate your network connections' growth. Now, if they would do that AND at the same time make a copy of your emails OR use your emails content to "tag" you as someone who likes/dislikes certain brands/products/etc to better serve you ads now or in the future, that would be totally different jar of wax. AFAIK nothing like that transpired.