China has detained two Canadians in apparent retaliation for the recent arrest of a top Chinese executive in Vancouver. The men have been identified as Michael Kovrig, a former Canadian diplomat who now works for the International Crisis Group, and Michael Spavor, who runs cultural exchanges with North Korea. They are both accused of suspicion of endangering national security. Meanwhile, a Canadian court has granted bail to Meng Wanzhou, chief financial officer of Chinese tech giant Huawei, who faces possible extradition to the United States for allegedly violating U.S. sanctions on Iran.