In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.

Proposed federal regulations would affect every streetsign in the country
transportation

Over the past twenty years, the number of homicides committed with a firearm in the United States has decreased by nearly 40 percent. The number of other crimes involving the use of a firearm has also plummeted, declining by nearly 70 percent.
crime

Roy Coopers refusal to do his job is costing taxpayers money.

ethics