- Sat Nov 26, 2011 12:49 pm
#3111
The government claims that nuclear power plants are safe, but the editorial concludes that these claims are unsupported (i.e. that the nuclear plants are dangerous). Here's author's rationale for her conclusion:
Premise: The government limited the nuclear industry's liability in case of an accident.
Premise: Unlimited liability poses a threat only if injury claims are sustainable.
Premise: Injury claims are sustainable only if injury results from a nuclear accident.
Obviously, the government did consider the possibility of a nuclear accident, or else they wouldn't have limited the liability of the nuclear industry in case of an accident. From this, the editorial jumps to the conclusion that the the government's claims about safety are unsupported, implying that nuclear plants are actually dangerous.
The conclusion goes too far: just because there is a hypothetical possibility of an accident prompting the government to limit liability in case of an accident does not automatically mean that nuclear plants are dangerous. We take insurance against a variety of real or remote possibilities, such as car accidents. This does not mean that driving is inherently dangerous.
To strengthen the argument, we need to establish how the government's behavior indicates the presence of a real danger of nuclear accidents. (D) does exactly that: the government does not act to prevent a certain kind of situation of arising (i.e. unlimited liability in case of an accident) unless there is a real danger that such a situation will arise:
Act to prevent situation --> Real danger of that situation
If we add the principle in (D) to the argument, we arrive at a much more cogent line of reasoning: since the government did act to limit the nuclear industry's liability, and such liability poses a threat only if injury claims are sustainable against the industry, then there must be a real danger of a sustainable injury claim. For such claims to be sustained, injury must result from a nuclear accident. Hence, there is a real danger of a nuclear accident.
As is common for must Principle questions, you need to understand the conditional reasoning underlying the argument, and prephrase what usually is a missing link between two conditions.
Nikki Siclunov
PowerScore Test Preparation