美國境內搭乘飛機，需要passport and Green card嗎？
-Based on the immigration law, you have to bring the green card when you are out of your home, but practically most people just use the ID (Driver license) for the travel within US and I have never heard somebody has trouble. But for the safe reason, it you travel to AZ or GA, you had better bring your green card with you because these two states are crazy.
