A trucker convoy continues to block a highway at a busy Canada-U.S. border crossing for a second day as part of a national protest against COVID-19 mandates and restrictions. The Canada Border Services Agency said the border crossing at Coutts, Alta., has remained open despite the blockade on Highway 4, but the RCMP says only foot traffic is able to get through. The convoy, which set up the blockade on Saturday, Jan. 29, is one of many in Canadian towns and cities held this weekend to coincide with the large-scale demonstration in Ottawa protesting the federal government’s COVID-19 mandates and restrictions. The Alberta RCMP issued a travel advisory on Jan. 29 for Highway 4 from south of Lethbridge, Alta., to the village of Coutts. The advisory remained in place on Jan. 30 and may continue for “an unknown period of time,” the RCMP says. The Alberta protest is being held in support of …