Governors of the New England states and leaders from five eastern Canadian provinces are jointly calling on President Barack Obama and Canadian Prime Minister Stephen Harper to address rail-safety issues after recent accidents involving petrochemical products. Additional rules "must be adopted without delay," according to a resolution adopted by the group. "It is certain that the fact we have increased a lot the volume of oil carried by rail transport, while we have not revised the rules, increases, without doubt, the risks," said Quebec Premier Pauline Marois.