Billy Graham releases what could be last book

Billy Graham has released what could be his last book. It's called "Where I Am: Heaven, Eternity, and our Life Beyond."

Graham's son and the president of the Billy Graham Evangelistic Association, Rev. Franklin Graham, says the book took about two years to complete. He says his father, who is 96, doesn't have the energy to take on any more projects.

Franklin Graham says his father has trouble seeing, hearing and walking, but his mind is still clear and he keeps up with world events.