The use of workers on temporary visas has increased in Australia over the last twenty years. Temporary migrant workers are very vulnerable due to the precarious nature of their work visa.Employers from all industries in Australia exploit their vulnerability by systematically underpaying them and making billions of dollars from unpaid wages.APC interviewed author and researcher Laurie Berg from the University of Technology Sydney about her latest research on the extent of this underpayment and the structural barriers that make it difficult for these workers to organise and claim their wages back.Asia Pacific Currents provides updates of labour struggles and campaigns from the Asia Pacific region. It is produced by Australia Asia Worker Links, in the studio of 3CR Radio in Melbourne, Australia