Federal agents returned to MacArthur Park on Thursday, less than a month after a raid targeting suspected drug smugglers. “This is a continuation of Free MacArthur Park,” Anthony Chrysanthis, special agent in charge of the Drug Enforcement Agency’s Los Angeles office, told reporters. “I told everybody when I was here that day: This is not a one-day operation.” The Los Angeles Police Department said officers made 13 arrests and issued six citations during Thursday’s operation.