Interesting about the “dead man’s switch.” The pressure applied, in these guys’ cases it’s their hands to the cart handle, is actually PREVENTING detonation, so they have only to remove the hand to detonate. Thus taking the men out by gunshot actually will ACTIVATE the explosives as the hands loosen their grip in death. Whoa, so much energy every expended towards evil.
Yeah they are pretty high tech.
This has been around since the invention of gun powder.