If you're looking for information on United Airlines Flights 93 and 175, there are several comprehensive sources available online:
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United Airlines Flight 93
- Wikipedia provides detailed information about the timeline, passenger actions, and aftermath of the flight.
- The Flight 93 National Memorial offers insight into the heroic actions of the passengers and crew, and the memorial erected in their honor.
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United Airlines Flight 175
- Wikipedia gives an in-depth account of the events and impact of the flight, including its hijacking and collision with the World Trade Center.
- History.com discusses the broader context of the September 11 attacks, including Flight 175.
These resources should provide a substantial overview of the events surrounding each flight, including their significance in the context of the September 11, 2001 attacks.