From The Smoke of Satan in the Temple of God:
Cardinal Wojtyla had warned in preaching the papal retreat in 1976 of “rebellion,” i.e., the apostasy of the present age, the source for the present crisis of faith facing the Church. I believe it is consistent with Church teaching on spiritual warfare to see in St. Paul’s “son of perdition” one who would lead humanity away from the Church toward a humanist, man-centered world-view claiming the right of authorship of the moral law. This also explains why those who dissent from Church doctrine and the authority of the magisterium claim an amorphous “spirit of Vatican II” (an “anti-word?”) as their authority for what amounts to unbelief. In our own time the reader perhaps has experienced the war for the soul of men waged between the authentic Christian humanism of the Gospel, which permeates the teaching of John Paul the Great, and the “new humanism” which violates the rights of God as true Author of all that is good.
This "Spirit of Vatican II" has reemerges in the blogoshpere of late, as evidenced here.