November 14, 2012 2:10 PM

Killing an enemy is more permissible than blinding him

Not all weapons are designed to kill; some are just meant to cause injury. Yet under the rules of war — a somewhat haphazard collection of ethical and legal directives — we are sometimes allowed to use lethal weapons even when certain nonlethal weapons are disallowed. In short, the lethal weapons are more permissible on the battlefield.

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