Originally Posted by
dustman81
You are required to carry your passport if you travel by air, including to Canada. CBSA and CBP can ask you for your passport at any time, and if you don't have it, kiss NEXUS good-bye.
Show me the proof of this. I don't even have a passport and there is no requirement to use one. A NEXUS is a substitute to a passport. That is the offical response from the CBSA and CBP I have gotten.