Today marks a decade since the presidential plane crash which claimed the lives of 96 people, mostly high-ranking state and military officials including Polish president Lech Kaczyński.
The Polish officials had been on their way to commemorate some 22,000 Polish prisoners of war and intellectuals who were killed in the spring of 1940 on orders from top Soviet authorities in what is known as the Katyn Massacre.
The disaster has scarred the national psyche and is still a source of controversy and recrimination in Poland.
Hosted by Michał Owczarek