I am traveling on AA by redeeming some of my miles. I will arrive in seoul on AA but will switch to Asiana airlines on another ticket to continue to my final dest. my bags will be checked to seoul. i will need to pick then up at the AA baggage claim and carry them to the Asiana airline desk to check in. will i have to exit the arrival/departure terminal to do this, and if so will i need a visa for korean ? i am a us citizen with us pp