Free to Speak

The worldwide impact of free speech on religion and science; the work of Nobel Laureate Barry Marshall; cartoons published by Charlie Hebdo that led to a massacre.

A Kenyan filmmaker whose love story garnered a nationwide ban; a Turkish political artist who was censored for his work; the arrest of members of 2 Live Crew for obscenity; a student who took a lawsuit over banned books to the Supreme Court.

The long history of governments suppressing speech, with personal stories from Hong Kong, North Korea and Peru.