The National Transportation Safety Board says "this accident would not have occurred" if positive train control system had been in place. The derailed Amtrak train likely topped 100 mph. Here's the latest: http://on.msnbc.com/1QKwpEi | MSNBC

1K views | #UPDATE: The National Transportation Safety Board released...

48K views · 221 reactions | National Transportation Safety Board exercised transparency as it released footage showing people working to determine the cause of the plane collision in Washington, DC, that claimed the lives of 67 people. | Breitbart | Facebook

The National Transportation Safety Board is now investigating Saturday’s deadly boat crash. But the FDNY was integral in responding the crash, using special operations, including drones, to identify victims and assess the scene. Assistant Chief of Special Operations Malcolm Moore tells us more about the Department’s response and how images gathered by our Robotics Unit are still being used to help the investigation. | New York City Fire Department (FDNY)

109K views · 825 reactions | The National Transportation Safety Board is investigating a helicopter crash after the aircraft broke apart midair and plunged into the Hudson River on April 10. All six people aboard were killed. The cause remains unknown. | Newsweek | Facebook