In the early-morning hours of May 2, 2011, a small team of American military and intelligence professionals landed inside the high white walls of a mysterious compound in Abbottabad, Pakistan. The team’s mission, code-named Operation Neptune Spear, had two primary objectives: capture or kill Osama bin Laden and gather as much intelligence as possible about the al Qaeda leader and his network. A bullet to bin Laden’s head accomplished the first; the quick work of the Sensitive Site Exploitation team accomplished the second.

It...