There are more slaves today than any time in history. When we stay silent, they remain hidden. America’s Congress is under pressure to cut foreign aid spending, which includes programmes that free slaves. The International Justice Mission (IJM) in America are encouraging people to mobilise their communities to make a stand in the fight for justice via a 100 Postcard Challenge. It is a way for Americans to get involved in the fight for freedom on behalf of children, women and men living in slavery around the world. The challenge involves asking 100 people to sign an IJM's Abolition Postcard and send it to their member of Congress. The idea is that if enough members of Congress realise that people in their state care about abolishing modern-day slavery, and see a growing anti-slavery movement in their state, they will get behind the voices crying out for justice and financially support programmes that free slaves.