As Poland’s media become increasingly politicized, publisher Agora and a Soros-backed fund have teamed up to buy the second-largest radio station. With elections looming, the anti-PiS coalition is preparing to fight.Agora, which owns Poland's largest circulation daily, Gazeta Wyborcza, recently signed a deal to buy 40 percent of Eurozet for 130.8 million zlotys ($34 million, …