'Find the member of the Virtual Organization that I haven\'t already
spoken too'

def members_to_ask(self, name_id):

    vo_members = self._affiliation_members()
    for member in self.member:
        if (member not in vo_members):
            vo_members.append(member)
    vo_members = [m for m in vo_members if (not self.sp.users.cache.active(name_id, m))]
    logger.info(('VO    members    (not    cached):    %s' % vo_members))
    return vo_members
