It is not that difficult to read news about the dangers that Bogota may give future expats. However, news may be sometimes exaggerated or that it may only concrentrate on certain aspects of a nation.Surely, you won't fall for a single news article, right? Even two--or three. It is still best to get the news from those who really know what is it like in the city.
Link: Moving to Bogota ... - Thorn Tree Travel Forum - Lonely Planet