And not just any old infectious disease lab, but a "Level 3 Containment Facility" that handles air-borne human pathogens!
And while we're at it, lets put our lab on the top four floors of a twenty-storey building!
What could possibly go wrong?..
Perhaps the reasoning is that the prevailing westerly winds would safely disburse those air-borne pathogens over the less-privileged eastern extremities of Toronto.
Toronto's oopsie might be Oshawa's Armageddon, but Oshawa is screwed anyway, so who cares?