Experts present findings from a long-awaited government report that lists factors which 

Experts present findings from a long-awaited government report that lists factors which contributed to last year's plane crash in Russia that killed Polish President Lech Kaczynski and 95 others, during a news conference at the prime minister's office in Warsaw, Poland, Friday, July 29, 2011. A Polish report into the 2010 plane crash in Russia that killed President Lech Kaczynski and 95 others says Russian air traffic controllers gave incorrect landing instructions to pilots. (AP Photo/Czarek Sokolowski)
Associated Press
Experts present findings from a long-awaited government report that lists factors which contributed to last year's plane crash in Russia that killed Polish President Lech Kaczynski and 95 others, during a news conference at the prime minister's office in Warsaw, Poland, Friday, July 29, 2011. A Polish report into the 2010 plane crash in Russia that killed President Lech Kaczynski and 95 others says Russian air traffic controllers gave incorrect landing instructions to pilots. (AP Photo/Czarek Sokolowski)
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