According to a recent research, one out of eight marriages was interracial last year, while four out of 10 single farmers married foreign women, mostly from China, Vietnam or other Southeast Asian countries. Also, most migrant workers are employed in 3D industries - that is, difficult, dirty, and dangerous. Korea can hardly be called a multicultural country, but it may only be a matter of time before it becomes one, given the pace of increasing foreigners, whose number has doubled in just three years.