"I am sure the Cruise company wouldnt expose us to anything like that."
Are you sure? Lets face it the cruise company Liability ends when you get off the ship.
Now that being said I will be heading there in January ‘07 but let me assure you that I will not be making my decision to get off the ship based on the fact that the “cruise company would never expose me to something dangerous”. I believe that is dangerous in its self.
Here is the link for the current travel warning for Columbia from the US Department of State
http://travel.state.gov/travel/cis_pa_tw/tw/tw_941.html