PARK SLOPE - Amid the recent sexual attacks that have plagued southern Brooklyn, a group of Sunset Park women says it is taking safety into its own hands. The women held a "Whistles Against Violence" event today, where they handed out safety whistles to other women, along with information on free self-defense courses and other safety tips. Organizers say they're trying to set an example for others by taking charge of their safety. They say they plan on holding similar events in the future.Residents march against series of sexual attacksPolice increase presence in Park Slope after string of sex assaultsNew information released in sexual assault cases