Beijing (AFP) May 28, 2013China's vast army of migrant workers continued to expand last year but the rate of their pay increases slowed, a government report showed, as growth in the world's second-largest economy decelerated. The movement from China's countryside to its booming cities over recent decades has been one of the greatest human migrations of all time. The number of migrant labourers totalled 262.6 mill Reported by Terra Daily 2 hours ago.