Vegan activist talks about taking action against 'cruelty'

What makes someone move from holding a strong opinion to taking action for a cause?

Leon has been involved in direct protest against animal agriculture for 18 months.

After becoming a vegan, he felt abstaining from eating animal products was not enough, and decided to take things a step further.

He says his protests are always calm and peaceful but at times it's hard to keep emotions in check.