While Christians yearn for God, the wicked have no such feelings. Indeed they distain even the thought of God.  "The wicked in his proud countenance does not seek God; God is in none of his thoughts." Ps 10:4 Though God is gracious to them, they don't learn righteousness even when among Christians. Too often I've heard Christians blaming the Christian community for the corruption of the society, and while there is some culpability there, many people are simply not going to be influenced by the righteous or by good things happening. The United States has experienced alot of blessings from its Christian heritage, and yet the wicked increase. So what does God do to teach righteousness to those hardened in heart, who take His grace for granted and refuse to acknowledge Him? He sends judgment on the earth. I concur with many other Christians that while God does not condone the 9/11 incident, He probably did allow it partly as a wake up call. For while Americans carry around pieces of paper in their pockets saying "In God We Trust", how many actually trust in God? So also God's judgment is coming upon those religious elite of the Islamic community, who have not learned the way of righteousness but follow in the lies of their prophet and call evil good and good evil.