Forty years later, with the country still mired in war, Yoko Ono has resurrrected
the "War Is Over!" campaign she and John Lennon launched at the grisly
height of the Vietnam War. A product of the nonprofit Art Production
Fund, it features ad displays on New York City cabs, a YouTube video,
and downloadable posters in 60 languages.
"You've got the power," Lennon told young Americans then. "All we have to do is remember that: we've all got the power."