A question for you seasoned travelers. I renewed my passport book for the first time, for another 10 years. The new one came in the mail last week, but today I received my old one in the mail. Why?? Can I just destroy it? An aside. We applied for passports (me first one, wife renewal) our first year after moving to Vegas because Vegas has so many destinations to fly to. Never used them. But, still might make it to Canada on one of our Seattle trips, so we renewed.