Impeachment of acting president Han Duck-soo is latest twist in battle for country’s political future

For the fourth time this month, South Korea’s parliament has become the arena for a rancorous battle for the country’s political future.

Safeguarding the hard-won rights and freedoms South Koreans have enjoyed for almost four decades is a lofty aim – and supported by the vast majority of voters – but the scenes inside the national assembly have been a reminder of how thin the line can be between democracy and rule by force.