Members of the International Society for Animal Genetics continued their conference in Minneapolis today under heavy security. Police arrested about 80 people at protests against the conference yesterday, but reported no disturbances in downtown Minneapolis today. The FBI is still looking at suspicious canisters found near downtown Minneapolis that authorities say are linked to protesters. An FBI spokesman says one canister showed trace amounts of cyanide. The agency is still awaiting tests to determine what substance was mixed with the cyanide. St. Paul Police officers are standing by near Landmark Center where the conference participants are holding a banquet this evening. Minnesota Public Radio's Brandt Williams is on the scene with an update.