Caleb: "Police officers armed with assault rifles Wednesday raided the Moscow offices of the British oil giant BP, carrying out a type of ritual armed search of white-collar premises that is common enough here to have a nickname, 'masky show.'" Caleb: "Russia is as important for BP’s oil production as the United States, so even though the company has had such problems here for years, its share price often nudges up or down in response to police raids or the arrests of employees."