Global News at 10 Regina February 6 2020 6:12pm 01:40 2nd derailment in two months near Guernsey, Sask. raises maintenance questions An expert weighs on what could have caused two train derailments to happen in such a short period of time near Guernsey. Lower speed limit for trains carrying dangerous goods continuing permanently 2nd derailment in two months near Guernsey, Sask. raises maintenance questions Responsive site?