The Register reports that DARPA is applying for a patent “…for a contraption designed to hurl SWAT teams and other emergency workers onto the roofs of inaccessible tall buildings human cannonball style…”
I suggest they aren’t thinking big enough. Think of the possibilities for getting rid of busy-body government bureaucrats using an appropriately scaled up version.
Visions of “Monty Python and the Holy Grail” dance in my head….