The atmosphere in a Trident nuclear submarine is generally calm and quiet. Even pipe joints are cushioned to prevent noise that might tip off a pursuer. The Trident ranks among the world's most dangerous weaponsCswift, silent, armed with 24 long‑range missiles carrying 192 nuclear warheads. Trident crews are the cream of the Navy crop, and even the sailors who fix the plumbing exhibit a white‑collar decorum. The culture aboard ship is a low‑key, collegial one in which sailors learn to speak softly and share close quarters with an ever‑changing roster of shipmates. Being subject to strict security restrictions enhances a sense of elitism and pride. To move up and take charge of a Trident submarine is an extraordinary feat in the NavyCfewer than half the officers qualified for such commands ever get them. When Michael Alfonso took charge of the USS Florida, the crew welcomed his arrival. They knew he was one of themCa career Navy man who joined up as a teenager and moved up through the ranks. Past shipmates remembered him as basically a loner, who could be brusque but generally pleasant enough. Neighbors on shore found Alfonso to be an unfailingly polite man who kept mostly to himself.
The crew's delight in their new captain was short‑lived. Commander Alfonso moved swiftly to assume command, admonishing his sailors that he would push them hard. He wasn't jokingCsoon after the Florida slipped into deep waters to begin a postoverhaul shakedown cruise, the new captain loudly and publicly reprimanded those whose performance he considered lacking. Chief Petty Officer Donald MacArthur, chief of the navigation division, was only one of those who suffered Alfonso's anger personally. During training exercises, MacArthur was having trouble keeping the boat at periscope depth because of rough seas. Alfonso announced loudly, "You're disqualified." He then precipitously relieved him of his diving duty until he could be recertified by extra practice.