Very oddly, de Lubac seems to have been obsessed with salvaging the reputation of Teilhard de Chardin, lobbying on his behalf with bishops and Jesuit superiors, even devoting theological seminars on Chardin for Council Fathers, who just wanted insight into the affairs of the synod.
http://www.catholicworldreport.com/Item/4545/behind_the_scenes_at_vatican_ii.aspx
http://www.catholicworldreport.com/Item/4545/behind_the_scenes_at_vatican_ii.aspx