Data from the U.S. Centers for Disease Control and Prevention has shown that Americans use guns to frighten away intruders who are breaking into their homes about 27 times more often than the number of gun-related accidents that result in death or an emergency room visit. The 4 Supreme Court justices who claimed the ratio was 1:4 cited a local D.C. council committee report as their source, but the report provides no evidence to support the claim. It merely states that figure without offering any proof of it.