What is the B1 visa and is it being abused?
A "CBSN: On Assignment" investigation found some automakers benefiting from foreign labor in building their U.S. plants. The investigation found some subcontractors exploiting loopholes in visas known as the B1 and B2. Cathleen Caron, founder and executive director of Justice in Motion, speaks to Vladimir Duthiers about how the visas work.