The Trump administration looks set to revamp the H1B visa program, raising the application fee to $100,000 and potentially upending one of the country's signature immigration policies. But what exactly is this program and who does it serve. The H-1B visa allows US employers to hire foreign professionals in so-called specialty occupations, jobs that require at least a bachelor's degree, often in fields like computer science, engineering, or medicine.The idea is to fill labor shortages in areas where US worke ...