iran hangs two men for allegedly killing a security official during anti—government protests. you're watching bbc news. now it's time for hardtalk. welcome to hardtalk. i'm stephen sackur. in russia, voicing opposition to putin's war in ukraine is a crime. it can mean years injail. imagine, then, the resolve of a russian opposition activist who returned to his homeland after the ukraine invasion in order to speak out against the putin regime from within. not only that, vladimir kara—murza had already survived two apparent poisonings inside russia. he is now languishing in a russian prison. his wife, evgenia kara—murza, is my guest today. has putin's repression