As Prime Minister Justin Trudeau ponders whether or not to allow Huawei onto Canada’s 5G network, more and more national security experts and lawmakers are warning the Liberals about the company. 

Both Canadian and American authorities have sounded the alarm on Huawei, saying that its presence on 5G networks would pose a risk to national security and would endanger intelligence-sharing relationships between Western allies. 

Here are 12 current and former security experts, lawmakers and officials who have gone on record warning Canada about Huawei technology.