In November we will be arriving at CDG in Paris from the US on Delta using a US passport. We have 1 hour 20 minutes before our flight out of CDG to Prague on Air France. Delta says this is enough time to connect but I am concerned about passport/immigration/customs issues. Will we have to get our luggage or will it be checked through to the flight out? Is 1 hour 20 minutes sufficient time to connect to our flight out?