Climate activists to Kerry: Keystone pipeline a ‘bigger mistake’ than Vietnam
'In 1971, when you were roughly our age, you asked ‘How can you ask a man to be the last man to die for a mistake?’' the letter states. 'We stand at such a point today, with respect to an even greater challenge, an even bigger mistake — the imminent threat of catastrophic climate disruption.' 'We dare to believe that it’s not just an accident of history that this recommendation falls to you.'