The questions may have answers elsewhere. The fact sheet says there are reports on risks to humans and fuel ignition. Maybe you have links to those.
As for the claim "The driver can restart the engine and continue to his/her destination after security personnel determine that no threat was present", is there an explanation of the mechanism by which the vehicle stops moving with nothing being damaged? A gasoline engine, diesel engine, and electric motor are all different in how they operate.
Why can't it be thwarted with shielding?
Why didn't the company implement it when it was touted long ago?
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