What a wondrously simplistic and inaccurate statement.
You should have stopped at 'group'.
Have you read any of their articles before? Presstv is hosted off an Iranian web domain. In 2009 they had a news article about holocaust denialism.
The writer of the article in the OP is a known 9/11 truth activist with a misleading article title.
Where are the links to the studies the writer used to determine the conclusion? Or are we supposed to take his word for it?