How Police Found Second Bomb, and a ‘Total Containment Vessel’ Hauled It Away

The total containment vessel is essentially an inside-out diving vessel, Lt. Mark Torre, the commanding officer of the department’s bomb squad, said in an interview in July. “Instead of keeping the pressure out and keeping you alive in five fathoms of water, it keeps the pressure in,” he explained. Should a bomb explode inside, tiny vents allow pressure to escape.