Jose Ageo Luna Vanegas first worked for Signet Builders in the early 2000s. Hired on a temporary labor visa, he traveled from Mexico to U.S. job sites. The hours were long, but he was paid overtime.

Forbes contributors publish independent expert analyses and insights. Stuart Anderson writes about immigration, business and globalization. A new lawsuit seeks to block a Labor Department rule that ...

Christopher A. Farrell is a bestselling author, and former Wall Street trader and market maker with nearly 30 years of experience, trading over $20 billion in transaction value over his career.