Cross-border policing on the Old Dublin Road at Carrickcarnan has been stepped up in a renewed push to shut down dangerous “boy racer” gatherings that locals say have blighted the area for more than a decade. Sinn Féin MLA Liz Kimmins spoke out after a joint meeting involving herself, Newry and Armagh MP Dáire Hughes, Louth TD Ruairí O’Murchu and councillors Cathal King and Antoin Watters with senior officers from both the PSNI and An Garda Síoc…