To liberalise or prohibit, that is the question. And to answer it the masters of live debate have joined forces with the masters of web technology to create a never-seen-before combination of Oxford debating and Silicon Valley prowess.

Prohibitionists argue that legalising anything increases its consumption. The world has enough of a problem with legal drugs like alcohol and tobacco, so why add to the problem by legalising cannabis, cocaine and heroin?

The liberalisers say prohibition doesn’t work. By declaring certain drugs illegal we haven’t reduced consumption or solved any problem. Instead we’ve created an epidemic of crime, illness, failed states and money laundering.

Richard Branson; Russell Brand and Misha Glenny; Geoffrey Robertson and Eliot Spitzer. Experts, orators and celebrities who’ve made this their cause – come and see them lock horns in a new Intelligence²/Google+ debate format. Some of our speakers will be on stage in London, others beamed in from Mexico City or São Paulo or New Orleans, all thanks to the “Hangout” tool on Google+.

The web will have its say, and so can you at the event in London. Be part of the buzz of the audience, be part of an event beamed across the web to millions. Come and witness the future of the global mind-clash at the first of our Versus debates, live at Kings Place.