Polish prosecutors alleged Monday that a new analysis of evidence into the 2010 plane crash in Russia that killed the Polish president shows that two Russian air traffic controllers and a third person in the control tower willingly contributed to the disaster. The Russian government strongly denied the allegations. Poland's National Prosecutor Marek Kuczynski said there is "no doubt" that one of the causes of the crash was the behavior of those in the control tower. He said they were guilty of "deliberately causing a catastrophe."
read more: http://www.haaretz.com/world-news/europe/1.781127