We dodged a bullet this week! Apparently there was violence in the international airport in Buenos Aires on Saturday because of a baggage handler´s strike. Frustrated passengers smashed a ticket counter and threw things at employees. Not to mention that most of their flights were cancelled on Friday and Saturday.
We flew through Buenos Aires on both Thursday (the day before the strike) and on Sunday (the day afterwards). Although we did fly via the domestic airport, which is many miles away from the international airport.
Here is a news article on it: http://www.aero-news.net/index.cfm?ContentBlockID=6a8e6f22-3124-4776-99c8-4e84a1d70277