Jaroslaw Kaczynski, the twin brother of the late President, stands during a wreath laying ceremony in front of the presidential palace in Warsaw April 10, 2011, to commemorate the first anniversary of a plane crash in Smolensk that killed 96 people. Russia stoked Sunday the flames of a new diplomatic flare-up with Poland by expressing "bewilderment" at Polish anger over its decision to replace a plaque marking the death of the country's president.The original version of the commemorative sign noted that Lech Kaczynski and 95 other crash victims had been travelling to the Russian town of Katyn to mark the 70th anniversary of the murder of 22,000 Polish officers by Soviet secret police. AFP PHOTO WOJTEK RADWANSKI