Banners and placards are held aloft during a demonstration in front of the presidential palace in Warsaw on Sunday marking the first anniversary of the plane crash in Russia that killed President Lech Kaczynski and 95 others. Poland is still deeply divided over the investigation into the crash. A year later, 42 percent of Poles now see Polish-Russian relations as "bad." (Associated Press)

Banners and placards are held aloft during a demonstration in front of the presidential palace in Warsaw on Sunday marking the first anniversary of the plane crash in Russia that killed President Lech Kaczynski and 95 others. Poland is still deeply divided over the investigation into the crash. A year later, 42 percent of Poles now see Polish-Russian relations as "bad." (Associated Press)