Polish opposition leader Jaroslaw Kaczynski places a candle at the memorial dedicated to his twin brother, Lech, and the other passengers who died in the plane crash near Smolensk, Russia, on April 10, 2010. (Associated Press)

Polish opposition leader Jaroslaw Kaczynski places a candle at the memorial dedicated to his twin brother, Lech, and the other passengers who died in the plane crash near Smolensk, Russia, on April 10, 2010. (Associated Press)