KANSAS CITY, Mo. (AP) — A federal task force designed to help local law enforcement agencies reduce violent crime has already made more than 1,000 arrests in the cities where it has been deployed since it began in early July, U.S. Attorney General William Barr said.

Barr was in Kansas City Wednesday as part of a tour of three cities participating in Operation LeGend, which was named for a 4-year-old Kansas City boy who was shot and killed while he slept in his father's apartment on June 29.

The task force has sent more than 1,000 agents from several federal law enforcement agencies to cities t...