回複：緊急求救,下個星期去加拿大旅遊, 發現小孩的美國護照都過期了.

It should be okay. We did last October when my son's passport was 2 months over due. I said I did not know. They let us pass.

Back to USA, we did not even were asked.

If you drive your car, you are safe. They check your license plate.