The U.S. government has refused for decades not only to do something about escalating gun violence but also to learn anything about it. This policy of willful ignorance is at long last expected to end under a federal budget that funds gun violence research for the first time in more than 20 years.

In a victory for House Speaker Nancy Pelosi’s Democrats as well as common sense, the $1.4 trillion spending legislation passed by Congress and signed by President Trump last week includes $25 million for the Centers for Disease Control and Prevention and the National Institutes of Health to study the toll of firearms.