If you go to the second floor of the National Museum of American History in Washington, D.C., you’ll find a small room containing an 18th-century Bible whose pages are full of holes. They are carefully razor-cut empty spaces, so this was not an act of vandalism. It was, rather, a project begun by Thomas Jefferson when he was 77 years old. Painstakingly removing those passages he thought reflected the actual teachings of Jesus of Nazareth, Jefferson literally cut and pasted them into a slimmer, different New Testament, and left behind the remnants (all on display until July 15). What did he edit out?