John Piper Quote
"God’s deepest answer to terrorism and calamity is the suffering and death of his Son. He entered into our fallen world of sin and misery and death. He bore in himself the cause of it all—sin. And he bought by his death the cure for it all—forgiveness and everlasting joy in the age to come."
From his sermon deliver on September 11, 2005...you can read it here...http://www.desiringgod.org/library/sermons/05/091105.html