It is no secret that Colombia is one of the most dangerous countries in the world with crime in Colombia at an alarmingly high rate. However, constructive steps have been taken in this regard, and the country is much safer than what it used to be, but crime in Colombia is still highly prevalent. Robbery and other violent crimes, as well as scams against unsuspecting tourists, are the most common forms of crime in Colombia, mainly in urban areas. Generally speaking, if you are the victim of a robbery, you should not resist. Organized crime in the form of Colombia’s drug cartels are the major contributors of crime in the country with many crimes associated with drug trafficking. Bogotá and other large Colombian cities share many of the same security concerns as other big cities, and crimes such as muggings, assaults, burglaries, theft and credit card fraud all remain problems. The public bus systems in Colombia can also be dangerous. The rebel group known as the Revolutionary Armed Forces of Colombia target buses including those run by the Government of Colombia's TransMilenio system; on several occasions they have set fire to public transport vehicles. Criminals target passengers for theft and sexual assaults and demonstrators have been known to seize and burn buses. Tourists should avoid sensitive areas of the city, and on the first signs of any unrest should remain in their hotels and not venture out anywhere.