In this episode, Trish and Traci discuss the 1984 Mexico City LPG disaster in Mexico, where a pipe burst at a Pemex facility. This led to a massive explosion equivalent to five Hiroshima bombs. A combination of factors, including poor management of change, inadequate fireproofing and proximity to residential areas, resulted in 500 deaths. Key lessons included the importance of proper land use planning, risk assessment and fire protection.