This week marks the 30th anniversary of John Lennon's assassination. While some wonder what Lennon's next 30 years would have produced, others are focusing more on the day of his death. Discussion has also predictably turned to the legacy that the musician left behind, and how we remember him today. Here's a sampling of different takes on Lennon: He was an artist through and through: "Lennon's willingness to let life bleed into art, and art into life, seems remarkably prescient," says Newsweek's Andrew Romano. "Today it's a prerequisite for stardom." He demonstrated how "stars could mine their...