The mood at AquaBounty Technologies a year ago was buoyant. Regulators had released a draft assessment of the company's genetically engineered salmon, which grow faster than normal, and found them to be environmentally benign. A few months after the assessment's comment period closed, the company began to raise more than 6,000 kilograms of salmon at its facility in Panama, in anticipation of the final approval by the US Food and Drug Administration (FDA) that would open the gates and allow the fish onto supermarket shelves.
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