At 7:45 p.m. on April 20, 2010, four British Petroleum and Transocean VIP’s landed aboard Deepwater Horizon for a Management Visibility Tour. The agenda: to credit the crew for 7 years with no lost-time injuries, and to check workplace conditions for occupational hazards found recently on other rigs. Seven hours later, the worst oil rig blowout and offshore spill in U.S. history transpired. Had there been focus on process safety, in addition to Institutional Safety, the blowout may have been averted.