Ugh--reading through this thread, I'm now a little worried about our upcoming flights this Saturday. We are arriving from Edmonton, connecting through YYZ, headed to LGA (all on Air Canada in business class). The connection time is 90 minutes. We have no special Global Entry/NEXUS or anything like that. Is that going to be enough to make it through everything and get to our connecting flight, which departs YYZ at 6:30pm? What happens if we miss it? (we've never missed a connecting flight anywhere before)