Thousands of Christians are distributing free copies of Charles Darwin's book, Origin of Species, at 100 of America's top universities.
    
Students are passing out the book at Georgetown University near Washington, D.C., on the 150th anniversary of the book's first publishing date.
    
Darwin's book attacked the biblical explanation of creationism. But what is unique about the free edition is that it contains a 50-page introduction by Christian author Ray Comfort.
    
In his expository, Comfort questions the validity of Darwin's theory of evolution.

Ray Comfort joined CBN News to discuss the strong public reaction to his introduction in Darwin's book.

How have students reacted to Comfort's message? Click play for his answer.