U.S. journalist Evan Gershkovich’s trial for espionage in Russia begins behind closed doors Wednesday in what his employer, The Wall Street Journal, has already slammed as a “sham” process. Gershkovich, 32, a former reporter for The Moscow Times, became the first Western journalist to be arrested in Russia on spying charges since the Cold War when he was detained by Federal Security Service (FSB) agents during a reporting trip last March. He, his employer and the U.S. strongly deny the accusations against him. On Wednesday, he appeared in the glass defendants’ cage at Yekaterinburg’s Sverdlovs…