It is not legal for employees alleging sexual assault or harassment. Because Congress passed a law making that illegal. Also, it is not legal for baggage handlers, because the Supreme Court said there's an exemption for working in interstate commerce. IIRC Congress tried to ban it across the board last year, but it died in the Senate and then the House flipped so there won't be another chance for a few years at least.
It is not legal for employees alleging sexual assault or harassment. Because Congress passed a law making that illegal. Also, it is not legal for baggage handlers, because the Supreme Court said there's an exemption for working in interstate commerce. IIRC Congress tried to ban it across the board last year, but it died in the Senate and then the House flipped so there won't be another chance for a few years at least.