
One common strategy in the various gun debates is to compare guns and other dangerous things, such as cars. Interestingly, both those who favor and those who oppose increased limitations make use of this comparison.
Since this is an age of micro-communication, the comparison is often made rapidly and without adequate development. However, it does seem useful to expand a bit on the comparison and present some properly developed arguments.
An analogical argument is an argument in which one concludes that two things are alike in a certain respect because they are alike in other respects. Formally, an argument by analogy looks like this:
- Premise 1: X and Y have properties P,Q,R.
- Premise 2: X has property Z.
- Conclusion: Y has property Z.
The first premise establishes the analogy by showing that the things (X and Y) in question are similar in certain respects (properties P, Q, R, etc.). The second premise establishes that X has an additional quality, Z. The conclusion asserts that Y has property or feature Z as well. Since this is an inductive argument, the truth of the premises is supposed to make the conclusion likely to be true rather than certainly true.

The strength (quality) of an analogical argument depends on three factors. First, the more properties X and Y have in common, the better the argument. Second, the more relevant the shared properties are to property Z, the better the argument. Third, it must be determined whether X and Y have relevant dissimilarities as well as similarities. The more dissimilarities and the more relevant they are, the weaker the argument. Now the basics of the argument by analogy have been presented, I can proceed to the main attraction—comparing guns and cars.
Those who favor increased limitations on guns can avail themselves of an analogy between guns and cars that involves the fact that driving is highly regulated. To be specific, the argument for more restrictions on guns could be framed as follows:
- Premise 1: Cars and guns are dangerous machines that can cause harm or death intentionally or accidentally.
- Premise 2: The operation of a car is extensively regulated by law and requires that the operator be properly trained and licensed.
- Conclusion: Therefore, the operation of a gun should be extensively regulated by law and require that the operator be properly trained and licensed.
Since this is a very brief argument, the specific regulations, licensing and so on would need to be properly specified in a very extensive case for more extensively regulating guns. Despite its concise presentation, the argument does seem appealing. After all, if I cannot drive my truck around without having a license and insurance, it would seem to make sense that (for similar reasons) I should not be able to have a gun without being properly licensed and insured. At the core of the justification is, of course, the fact that both guns and cars are machines that can cause considerable damage either by accident or intent.
Despite the appeal of this comparison, there are differences between cars and guns that could break the analogy. The most obvious is, at least in the United States, that gun ownership is taken to be a legal and moral right, whereas driving is regarded as a privilege. Intuitively, restricting a right would require stronger justification than restricting a privilege.
Interestingly, the analogy can be accepted but it could be claimed that it does not justify more limitations on guns. After all, the regulation of cars covers the operation of the car in public—that is, on roads where there are other people. If I wish to drive my truck around only on my own land, then I do not require a license and the regulations governing this are rather limited.
In the case of guns, a person who wishes to bring a gun into public places generally needs a concealed weapon permit (which requires training and an extensive background check). Hunting, even on private land, also requires a license (which requires proof of training). A person can, however, travel to a legitimate shooting range with her gun without a license—but the gun must be properly stored (typically in a case). A person can also have a weapon in her dwelling (with some exceptions) and even fire it on her property, provided that the discharge of firearms is not restricted there (which is most often the case anywhere but out in the country).
Because of this, it could be concluded that the gun laws are already comparable to the laws governing cars and hence there is no need to increase the restrictions on guns. This could, of course be countered by arguing that guns are different from cars in ways that would warrant more extensive regulations. However, this would obviously involve abandoning the argument by analogy that compared cars and guns.
As noted above, it is also possible to draw a comparison between cars and guns aimed at showing that there should not be severe restrictions on gun ownership.
- Premise 1: Guns and cars are dangerous machines that can cause harm or death intentionally or accidentally.
- Premise 2: Private ownership of guns should be severely restricted.
- Conclusion: Therefore, the private ownership of cars should be severely restricted.
Obviously enough, those taking a pro-gun position would take this analogy to lead to what they would hope most would regard as an absurdity or at least unacceptable, namely that the private ownership of cars should be severely restricted. Behind the argument is, of course, the principle that what justifies severely restricting ownership of a dangerous machine is its capacity to cause harm intentionally or accidentally. By this principle, if gun ownership should be severely restricted on the grounds that doing so will avoid harm, then car ownership should also be severely restricted on the grounds that doing so will avoid harm. Guns and cars both have causal roles in the harms caused intentionally or accidentally by people (and cars also contribute extensively to pollution and climate change making them potentially more damaging than guns).
Just as those who favor severe restrictions on guns tend to claim that the police can provide the protection citizens require, it could be claimed that public transport would provide the transportation that citizens require. Obviously enough, someone who favors severe restrictions on cars and is in favor of public transportation might regard this argument as reasonable rather than a reduction to absurdity.
This analogy can be countered by pointing out differences between guns and cars. One obvious difference is that guns are designed to cause harm while cars are designed to transport people. Cars are lethal weapons—but unintentionally so. However, it is not clear that this difference is relevant to the matter of regulation. After all, the fact that a car is not designed to kill people does not make those killed by cars any less dead. What seems to matter is the impact of the machine and not its intended function.
This can be countered by contending that guns do not have a legitimate use in civilian hands that would justify tolerating the harms involving guns. In contrast, the value of cars warrants tolerating the harms and deaths involving cars. This case can be made and would involve assessing the value of guns and cars relative to the harms done by allowing people to privately own them. That is, how many deaths it is acceptable to pay for private ownership of cars versus private ownership of guns. If cars are worth the cost and guns are not, then the analogy would break, thus allowing private ownership of guns to be severely restricted while allowing far less restriction on the private ownership of cars.