Open this photo in gallery: A view of a TV Screen showing Russian opposition leader Alexei Navalny, 2nd left, between his lawyers in a courtroom, via video link provided by the Russian Federal Penitentiary Service, during a preliminary hearing, in Melekhovo, Vladimir region, about 260 kilometers (163 miles) northeast of Moscow, on June 19.Alexander Zemlianichenko/The Associated Press Jailed opposition leader Alexei Navalny appeared before a Russian court on Monday to defend himself against new charges of extremism that could extend his prison term by decades. The hearing took place at the IK-6 penal colony in Melekhovo, about 235 km (145...