From farm to table - how safe is it?

Every time you pick a bag of sausages off the shelf, do you question where the sausages had been and how they were made? The journey from the farms to our tables can be long. How might our foods be contaminated, and how much do we trust food safety certifications? We hear from shoppers at the markets, and speak to Prof Brian Wansink and Prof Jinap Selamat to learn more about food safety.