Should free speech be allowed no matter what the cost or is there a line that cannot be crossed? Gabrielle Giffords, a Democratic congresswoman, was injured in a shooting, which left six others dead, at a political event in Tucson, Arizona. Some are blaming radio and TV pundits for fanning the flames of hatred and politicians stand accused of polarising opinion and pushing people to extremes. So when does saying what you think become incitement to violence? Inside Story discusses.
