John Lennon once wrote that "All you need is love." If that's the case, former presidential candidate Al Gore is a happy man. He is in the middle of a media lovefest celebrating his work, his career - even his efforts as actor, author, dancer and comedian. The former vice president has both a movie and a book about global warming debuting under the title "An Inconvenient Truth." He has gone from media darling to "the summer's most unlikely movie star," as NBC's Katie Couric called him in a May 24 interview. Gore, who Couric also called "funny, vulnerable, disarming,...