Bangladesh, July 22 -- The US Department of Labor's recent decision to launch a nationwide investigation into fraud involving the H-1B visa and PERM labor certification programs marks an important step toward restoring confidence in America's employment-based immigration system. For years, critics have argued that weaknesses in enforcement have allowed some employers to misuse programs intended to fill genuine labor shortages. Holding bad actors accountable is essential-not only to protect American workers, but also to preserve public trust in legal immigration.

Yet focusing solely on the H-1B visa program risks overlooking another employment-based visa category that has attracted far less scrutiny despite its potential significance: th...