Final answer:
According to the information provided, Professor Tabarrok did not specify a particular industry for the abuse of the national interest argument, but noted that the argument could be applied broadly, leading to protectionism and potential misuse.
Step-by-step explanation:
The national interest argument, which posits that certain key industries are vital for national security and should not be heavily reliant on foreign supplies, is often criticized for its potential for abuse as a form of protectionism. Professor Tabarrok did not specify a particular industry in the provided information, but he notes that the national security argument is weak because it could be used to protect almost any product. This means that the argument may lead to restricting imports needlessly, which could deplete domestic resources more rapidly than if imports were allowed.