Excerpt from Barbara Walters interview with Al Gore and family, which airs tonight on 20/20 at 10:00 p.m. ET/9:00 p.m. CT (check your local listings). The following exchanges, while sure to interest Note readers and historians, actually won't be part of tonight's 20/20 broadcast, so you can read them only here and now: WALTERS: I'm not sure that people realize that while you were in the residence of the Vice President [during the Florida recount] there were crowds of people outside screaming at you. What was that all about? AL GORE: Well, this was the Republican response to what was...