Since Beijing announced a new visa to attract young science and technology graduates, a backlash has erupted online, forcing the government to respond.When the Chinese government announced a new visa to attract young science and technology talent, it advertised the move as another step toward becoming the leading scientific power, one to which people from around the globe would flock.To many in China, it was a gross mistake.In the days before and since Oct. 1, when the visa was supposed to come into effect, commenters have accused the government of inviting foreigners to steal jobs from Chinese people, at a...