"We work in secret and we pride ourselves on that, so if somebody comes out and spills this much, it angers the rest of us," Jonathan Gilliam, a former SEAL, said in an interview.
But Debra Burlingame, whose brother Charles Burlingame was the pilot of the hijacked plane that crashed into the Pentagon, has said that O'Neill's descriptions were gratifying to the relatives of victims at a 9/11 museum ceremony where he donated the uniform he was wearing.
O'Neill's key role in the 2011 Osama bin Laden raid was hardly his only brush with a high-profile mission. He had faced many more such instances.