Virginia U.S. Senate candidate James Webb yesterday delivered his strongest criticism of incumbent Sen. George Allen of the fall campaign, vigorously defending himself against Allen's charges that he wrote sex-laced passages in his fiction novels. He called on voters to reject what he called the "smear tactics" of Allen and his campaign, who released excerpts Thursday from Webb's novels to the Drudge Report Web site and said the writings were lurid and inappropriate for a man seeking to serve in the Senate. "The fish rots from the head down," Webb (D) said, referring to his belief that Allen (R) is...