Colombia's recent past has been characterized by what its Nobel laureate Gabriel Garc a Marquez once called "a biblical holocaust" of human savagery. Along with the scourge of drug-related massacres facing the country, politically-motivated assassinations (averaging 30 per day in the 1990s), widespread disappearances, rapes, and kidnappings have run rampant through the country for decades. For many Colombians, the violence oft-invoked in today's immigration...