TODAY: Mayor of Yekaterinburg resigns over abolition of direct elections; Navalny press secretary detained twice in one week; Duma approves tit-for-tat sanctions bill; Russia and Japan threaten sanctions countermeasures; Shuvalov to head VEB; Putin offers support to Venezuelan leader, Foreign Ministry to research impact of US sanctions; Peskov says Abramovich visa not Kremlin’s problem.