As the Liberals head back to Parliament following the Oct. 21 federal election, they’ll be returning to a number of key files that were left unaddressed before the writ dropped — including deciding what security approach the government will take with Huawei Technologies Co. Ltd. equipment and Canada’s 5G networks. Of course, some things have changed since the House of Commons rose for the summer — not only will the Liberals need the support of another party to pass legislation now that they no longer have a...