Changing backpacker visas could interrupt Australia's food supply. Here's how‪.‬ Queensland Country Hour

It's become a right of passage for young people from about 40 countries around the world - go backpacking in Australia and while you're there pick up a jobs in a regional area to make money and extend your stay. 

More than a tourist program, the Working Holiday Maker visa has become a key source of workers in agriculture, which is why some farmers are nervous about potential changes that could see fewer people take up the challenge of a farm job.