Voter turnout is a problem around the world, particularly in local elections. But a small group of academics and activists in the US are experimenting with a new way of getting people to turn up and put their cross in a box – a lottery. Every voter is entered and one lucky winner gets a big cash prize. World Hacks investigates whether it works. Presenter: Kathleen Hawkins Reporter: Gemma Newby Producer: Tom Colls Image caption: Lottery balls about to be drawn, Image credit: Thomas Samson / Stringer / Getty Images