Last week, my fiancée was denied a visa to the US under the pretext that she is a “threat to the national interests of the United States of America”. She is not a terrorist. She is not a fraudster, a larcenist or a human trafficker. She is not violent and carries no hate in her heart. She is not planning to disappear into the shadows of America to become a nuisance lurking in the corners of the welfare system. She is a telecoms consultant who …