1) The document discusses several disasters including the Titanic sinking, 9/11 attacks on the World Trade Center including the impact on Cantor Fitzgerald, and United Flight 93.
2) It examines the heroes and inequities in how different groups were impacted, as well as any silver linings that emerged such as increased safety standards.
3) Long term impacts included things like the International Ice Patrol following the Titanic and increased aviation and building security after 9/11.