I got an e-mail like that. I called the local FBI office. They said "SPAM" it. Never open those kind of e-mails. You only confirm your e-mail address to the sender so he/they can sell it to other scammers. Also, never reply to them. And, of course, never give any money or information to them.
I do have a friend at the FBI office (she's a secretary there). Do you want me to put in a good word for you? Of course some of theose FBI agents are pretty good looking. LOL