TODAY: Duma passes second reading of pension reform bill as protesters gather outside; activist teen describes school visit from Interior Ministry agent; Kremlin says business could pay for infrastructure; oil buoys ruble; Verzilov suggests GRU behind his poisoning; UK claims Skripal suspect is GRU colonel; Poroshenko calls on UN countries to protect Ukraine against Russian “expansionism”; Lavrov declares solidarity with Venezuela; Shell interested in Gazprom Neft.