There's not much the world can do to stop authoritarian rulers from persecuting their political opponents, as shown by the standoff over Russian dissident Alexei Navalny, who is ill and imprisoned.
As the protests escalate, Modi's grip on India's internet communications remains as tight as ever.
Banning the Chinese-owned social media platforms raises free speech concerns and could worsen the US-China trade war.
Khashoggi’s ruthless killing is just one example of a broader trend including the widespread detention, kidnapping, murder and extradition of dissidents and their relatives.
Musine Kokalari was imprisoned and tortured by the communist regime in Albania in 1946 for standing up for free speech.
As Solzhenitsyn saw it, simple truths are always a threat to totalitarianism.
The sacking of Turkish education staff speaks to a broader agenda of control through removing educated dissident voices.
How do Afrikaners find a place in post-apartheid South Africa? A look back at the dissidents who took on the apartheid state over decades offers some examples.