Originally Posted by rens

Contrary to what has been expressed in this thread, my experience today (June9) in checking in for
aa213 to Brasilia in Miami was problematic. The kiosk would not allow checkin and the TA at the EXP Priority counter insisted that a visa was required. I attempted to explain about the waiver but she insisted that her 15 years of experience as a TA meant that she was correct. I asked that she either call a supervisor or check Timatic, but she did neither. She stated that I could say anything
I want, but she was right. Finally an agent next to her took pity and provided the correct information.
Very surprising as the waiver has been in effect for 9 days and Miami has a rather large number of American flites to Brazil. Even more surprising that this was at the EXP/First priority check in line.
Bottom line, YMMV, but there is a real possibility of about 15 minutes of unpleasantness. All will be resolved eventually.