In Greek mythology, the creator of humankind, Prometheus, incurs the ire of Zeus for stealing fire and giving it to the human race. In "Prometheus Bound," a tragedy by Aeschylus, Zeus orders his servant Kratos, the god of strength, to chain Prometheus to the rocks on a barren mountainside.
In response to the terrorist bombings in London, the city's Metropolitan Police reportedly adopted new internal guidelines. Code-named Operation Kratos, the guidelines allow anti-terrorism troopers to aim for the head, not the body, if they suspect someone is carrying explosives.
Back to Greek mythology. Kratos had a sibling, Bia, the personification of might and force. The two were always together.
The use of terrorist force must never be condoned, of course. Still, crossing the line by resorting to might and force must never happen.