I hate to be posting threads like this one as it tends to be interpreted as offensive, but I believe travelers should be reninded not to put ANY valuable in the luggage.
I had traveled 3 days ago from Mendoza to Iguazu through AEP in BA. Of course a delay in Mendoza, and the same in BA, duting the connection. So not sure in which of the two Airports in happened.
When I arrived to my hotel in Iguazu I noticed that things did move around too much. A closer look confirmed that someone went through my luggage, and very thoroughly. They took the time to open everything. So far I have lost only $80 CAD, a brand new watch a bought on the plane and a Belt (not even valuable. Go figure). They did not steal my Camera (expensive) and took the watch without the box. So I believe they could not take anything bulky or that would get them noticed.
I remeber I had read someone else complaining about a similar issue on the BA forum. So wanted to repost so people are aware of it. Not to say that it does no happen elsewhere (charles de Gaule in Paris is also notorious for that)
Not much harm, could have been worse. But people should be reminded that belongings in Suitcases are not necessarily safe...