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There is no political opposition or known dissidents in North Korea, and gathering to protest is too dangerous – but Mr Park hopes some will be inspired to carry out individual acts of resistance.

When America chooses to join World War I, the government prosecutes dissidents and silences protests.

There has been a sharp rise in plots by the Iranian regime to kidnap or assassinate dissidents, journalists and political foes living abroad, according to reports by Western intelligence agencies.

Spotlight claimed it was carried out by the Provisional IRA, although the dissident group the Real IRA admitted responsibility three years later.

At the direction of Marsalek, acting on behalf of Russian intelligence services, the cell conducted surveillance operations on targets including investigative journalists, Russian dissidents and political figures.