remember you can get into Canada with any valid id, but you will need a passport to get back into the states.
What!!!! You can't get back into your own country?!?! How are you supposed to get a U.S passport when you are stranded trying to cross the border into International Falls, Minnesota, or Houlton, Maine? I haven't had a passport in 40 years and I've never been to Canada since border restrictions went into place, so I'm completely ignorant on this subject.