Any countries in South America to avoid?

[lifeonlake]

I will be traveling by myself, I am not sure where, I have a few different threads on different places. My new idea is travel into South America. A continent I have never been. Anything to be aware of or maybe countries I should avoid traveling to. Colombia? Initially my thought was either Peru/Brazil or Venezuela. Thanks

[GFI]

I don’t think so that there is a country to avoid for tourism. I visited there couple of times and enjoyed very much especially in Brazil and Argentina.