RIA Novosti 
Nov 2, 2012
The editor in chief of Polish newspaper Rzeczpospolita has resigned after publishing an article claiming explosives were found at the scene of the 2010 plane crash that killed then Polish President Lech Kaczynski.
In a notice on the paper’s website, Tomasz Wrobelewski announced that he was stepping down as editor in chief to protect the newspaper’s “good name.”
On October 30 the paper published an article claiming that traces of explosives had been found at the Smolensk site where the plane carrying Kaczynski and other top officials crashed.
This claim contradicts official accounts of what caused the crash, and was immediately rejected by representatives of the Polish Prosecutor’s Office.