That system would only work if the rules are being enforced. In Massachusetts for example, seat belts are requried by law but police does not have the right to stop a driver for not wearing one, he can only be cited if police pulls him over for another offence, e.g. speeding. Thus, we have low compliance and tons of people (especially young) getting injured seriously or even killed because of not wearing a seat belt. It's a Darwinian approach to law enforcement.
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There are two types of vessels, submarines and targets.