HASTINGS, Minn. (WCCO) – The city of Hastings is looking to curb vandalism at a local park by installing a device that emits a high-frequency sound only heard by teens and some adults. Parks and Recreation Director Barry Bernstein said their looking to redevelop Cari Park near Red Wing Boulevard and are considering adding the security device known as SonicScreen, made by Miracletech Security. It would be installed by Webber Recreational Design, which is a company in Hastings. “It’s a sound barrier that would be activated when the park is closed to reduce loitering on the play equipment,” Bernstein said....