MADRID- After Kosovo why not next Colombia, land of the drug barons and 40 years of near continuous civil war? The rest of the world may drop its jaw at the idea of Nato troops being sent to pacify leftist guerrilla groups, army-backed, fascist-inclined paramilitaries and the world’s most ruthless drug cartels. But in Bogota, Colombia’s capital, it is being touted by some as a necessary solution. And if not Nato, at least the U.S. army. Don’t drop your jaw too far. For none less than the U.S. commander in chief, Bill Clinton, said last month that vital American interests were at stake in Colombia. It is “very much in our national security interests to do what we can”. When a U.S. president uses these code words it essentially means that the backbone of the U.S. military, intelligence and national security bodies has decided that, if necessary, the U.S. is prepared...