I would offer the example, and it may be a fairly lurid one, of a crazed, mentally deficient person who gets hold of a gun and many rounds of ammo.
This is still a scenario with an aggressor. The “crazed” person is just like an animal, or a force of nature. Obviously the lethal force is allowed.
The problem is generic, no need to try to make is specific. It deals with “
principles”. The problem occurs when the “aggressor” is totally unaware of the danger he poses. The word “aggressor” is not really applicable, since it includes a “malicious intent”.
Again, the question is simple. Someone, out of ignorance places others into lethal danger. There is only one way to prevent others from dying, and it would be the killing of this person. What does the church say about this hypothetical scenario?
As usual, the responses are a “school of red herrings”. Not enough information, asking for specifics, etc. In ethics classes it is a usual method of presenting a totally off-the-wall, highly improbable, but still logically possible quasi-problems. Lifeboat scenarios, for example. How many times does one happen to be in a lifeboat dilemma? But it deals with the question of “scarce resources”.
It is possible to have someone to carry a lethal virus, unknowingly. It is possible that the person would be willing to go into a quarantine, IF he knew about it. But he does not. If allowed, he would spread the virus and millions would die. In the hypothetical scenario the only solution is to kill this person.
If there would be any other solution, that would have to be used. The
only difference between this problem and the “unjust aggressor” is the absence of
malice and the
knowledge. In the case of the unjust aggressor the church accepts that lethal force is allowed. Why not here?