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Six months ago I won the lottery — the H-1B visa processing lottery for skilled foreign workers. I called my thrilled parents and celebrated with friends. I’m from northeastern China and have an M.B.A from Stanford, and was planning to stay in Silicon Valley to help start a company based on a promising new technology to improve the use of data. I was overjoyed because, historically, being selected in the lottery was a near guarantee that an applicant could remain in this country at least three more years.
But at the end of July, I received the dreaded Request for Further
