I have meet quite a few tourist who have been the victims of violet crime here, mostly robbings at gun or knife point.. The interesting thing is that in south africa its spose to be dangerous, where here it isnt so much, but i didnt hear of nearly as many in south africa..
And when i mean hear of, i mean first hand, as in people i have meet in hostels/hotels or travelling around. This was especially true when i first came to BSAS and was staying in a hostel while looking for an apartment, almost daily backpackers were turning up and having to stay in BSAS to replace passports / air tickets / ATM cards etc.. and often they had been travelling around south america, without incident, and argentina was their last stop and they couldnt wait to get out of the place.
The other interesting thing is that argentine friends have told me often before i took trips to bolivia, peru, brazil, chile etc to be very careful, as crime is rampent there and police corrupt etc.. but the only problems i have had have been in argentina - not voilet - people trying to steel my bags at bus station / passport pickpocketed..
I also wonder if this is because people maybe let their guard down in argentina because of the preception it is safer..