These are the topics you should not do a research about them
The following are the current banned topics:
• No topic in which the accident occurred prior to the year 1925 (focus on modern engineering accidents)
• Sinking of the Titanic
• Space Shuttle Challenger
• Tacoma Narrows Suspension Bridge
• Kansas City Hyatt Regency Walkways Collapse
• Chernobyl Nuclear Accident
• Fukushima Daiichi nuclear disaster, Japan (nuclear accident in 2011 after earthquake and tsunami)
• 9/11 (World Trade Center collapse)
• Hurricane Katrina
• Love Canal
• Sampoong Shopping Centre
• Ford Pinto
• The Concorde Crash
• Quebec Bridge
• St. Francis Dam
• East Cleveland Gas Explosion
• Bhopal Gas Disaster
• BP Gulf of Mexico Oil Leak (2010)
• BP Texas City Refinery Explosion
• Sinking of the Vasa
• Leaning Tower of Pisa
• Hindenburg Airship Explosion
• MGM Grand Hotel Fire
• Lac-Mégantic Train Derailment
• Savar Garment Factory Collapse, Bangladesh, 2013.