I am now based in Medellin, Colombia after having lived in San Jose, Costa Rica for eight years. The way AA treats me at MDE vs. SJO is notably different, and it is also notably different from the treatment of other airlines. Every time I check in, they literally interrogate me regarding where I'm going, why, for how long, the reason I have been in Colombia and the reason for my trip that day. It's not as if they simply ask the questions, but they do so quite intensely to the point that it's difficult to describe in writing. The demeanor of the agents changes from one of customer service to one of an authoritarian. Their questioning far exceeds that of Colombia Migración exit questions. In addition to the interrogatory, they insist that I place their paper bag tags on every bag. The Briggs and Riley duffle bags I carry have built in bag tags. They can only be lost if the entire bag is lost. It's duplicitous and unnecessary. I also fly frequently on Copa, and the contrast is astounding. They ask my destination in order to confirm that they are pulling up the right ticket for the right person, then it's all smiles. When asked if my bags are tagged, I point out the feature of having all of my information visibly attached, and away they go down the belt to be loaded. I'm an American citizen, Colombian legal resident and hold Executive Platinum status on AA. It's annoying to have to go through this every time I fly AA out of my home city. When it's practical, I choose Copa more often than normal for this reason. It isn't always possible, however, so I suffer through it for the scheduling convenience and maintenance of status. Having not flown AA out of other South American cities, I have no point of comparison against which I can compare. SJO is easy, but I'm curious about other departure points on the southern continent. Any experience that you folks can share will be greatly appreciated, along with any knowledge regarding the reason for these customer-unfriendly policies.