Deepwater Horizon Alarm Intentionally Disabled:

Testifying before a federal panel investigating the Deepwater Horizon explosion, Transocean employee Michael Williams said that an alarm designed to warn the crew if combustible gases were in danger of igniting was deliberately disabled. ?

Williams also told the panel that the computers used to control drilling operations on the rig froze regularly, resulting in blank blue screens, a phenomenon he said he and fellow employees ominously labeled, "the blue screen of death."