This piece originally appeared in The Hill.

The April Fool is anyone who reads Alex Nowrasteh’s column about H-1B guest-workers and believes his bunk.  If he had actually read the paper he cites about the effect of H-1B workers on American productivity he’d know that his claims are ludicrous. The paper doesn’t find that H-1B workers “have increased American productivity by 10 to 25 percent from 1990 to 2010”; it makes that estimate for the entire foreign STEM workforce, which includes one hundred thousand foreign students in the Optional Practical Training program who graduated with STEM degrees from U.S. schools, L-1 visa holders, and 300,000…

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