(WASHINGTON) -- The bomb planted in Times Square last spring could have been "devastating" and killed or injured dozens of people, according to an assessment of a government explosion of a mock "bomb" based on Faisal Shahzad's failed device.
Video of the Joint Terrorism Task Force's explosion, released this week, shows how much damage a successful device could have caused.
Bomb experts said while it is unlikely the resulting blast would have taken down any buildings, glass and twisted metal shooting out from the vehicle housing the bomb would have formed deadly shrapnel.
People in close proximity to the car could have been injured or killed by the fire and blast force, the experts said. In addition, it is possible there would have been injuries from broken glass and falling debris from adjacent buildings.
The bomb test was revealed in the Justice Department's sentencing memorandum for Shahzad, filed Thursday.
"On June 29, 2010, the JTTF conducted a controlled detonation of its bomb after it was placed in the back of a vehicle identical to the one Shahzad used," the memorandum said. "The JTTF also placed other vehicles nearby in order to measure the explosive effects of the bomb. While it is impossible to calculate precisely the impact of Shahzad's bomb had it detonated, the controlled detonation conducted by the JTTF demonstrated that those effects would have been devastating to the surrounding area."
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