Poland’s right-wing opposition, frustrated over its recent loss of power, urged its supporters to protest Thursday against moves by the new pro-European Union government to take control of state broadcasters and the state news agency. The Law and Justice party, which governed for eight years before losing October’s parliamentary elections, called for a protest by “Free Poles” outside parliament. It portrayed the protest as a defence of democracy and free media, although during its time in power it was criticised for curbing media freedom. It was unclear what the response would be, but emotions…